HHH-18731 Add generate_series() set-returning function

This commit is contained in:
Christian Beikov 2024-10-18 15:04:39 +02:00
parent 5bd244dd20
commit 82b20a0e90
75 changed files with 3975 additions and 209 deletions

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@ -60,10 +60,11 @@ elif [ "$RDBMS" == "db2_10_5" ]; then
goal="-Pdb=db2"
elif [ "$RDBMS" == "mssql" ] || [ "$RDBMS" == "mssql_2017" ]; then
goal="-Pdb=mssql_ci"
# Exclude some Sybase tests on CI because they use `xmltable` function which has a memory leak on the DB version in CI
elif [ "$RDBMS" == "sybase" ]; then
goal="-Pdb=sybase_ci"
goal="-Pdb=sybase_ci -PexcludeTests=**.GenerateSeriesTest*"
elif [ "$RDBMS" == "sybase_jconn" ]; then
goal="-Pdb=sybase_jconn_ci"
goal="-Pdb=sybase_jconn_ci -PexcludeTests=**.GenerateSeriesTest*"
elif [ "$RDBMS" == "tidb" ]; then
goal="-Pdb=tidb"
elif [ "$RDBMS" == "hana_cloud" ]; then

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@ -2958,7 +2958,7 @@ The following set-returning functions are available on many platforms:
| Function | purpose
| <<hql-array-unnest,`unnest()`>> | Turns an array into rows
//| `generate_series()` | Creates a series of values as rows
| <<hql-from-set-returning-functions-generate-series,`generate_series()`>> | Creates a series of values as rows
|===
To use set returning functions defined in the database, it is required to register them in a `FunctionContributor`:
@ -2986,6 +2986,43 @@ which is not supported on some databases for user defined functions.
Hibernate ORM tries to emulate this feature by wrapping invocations as lateral subqueries and using `row_number()`,
which may lead to worse performance.
[[hql-from-set-returning-functions-generate-series]]
==== `generate_series` set-returning function
A <<hql-from-set-returning-functions,set-returning function>>, which generates rows from a given start value (inclusive)
up to a given stop value (inclusive). The function has 2 variants:
* `generate_series(numeric, numeric [,numeric])` - Arguments are `start`, `stop` and `step` with a default of `1` for the optional `step` argument
* `generate_series(temporal, temporal, duration)` - Like the numeric variant, but for temporal types and `step` is required
[[hql-generate-series-example]]
====
[source, java, indent=0]
----
include::{srf-example-dir-hql}/GenerateSeriesTest.java[tags=hql-set-returning-function-generate-series-example]
----
====
To obtain the "row number" of a generated value i.e. ordinality, it is possible to use the `index()` function.
[[hql-generate-series-ordinality-example]]
====
[source, java, indent=0]
----
include::{srf-example-dir-hql}/GenerateSeriesTest.java[tags=hql-set-returning-function-generate-series-ordinality-example]
----
====
The `step` argument can be a negative value and progress from a higher `start` value to a lower `stop` value.
[[hql-generate-series-temporal-example]]
====
[source, java, indent=0]
----
include::{srf-example-dir-hql}/GenerateSeriesTest.java[tags=hql-set-returning-function-generate-series-temporal-example]
----
====
[[hql-join]]
=== Declaring joined entities

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@ -518,6 +518,7 @@ public class CockroachLegacyDialect extends Dialect {
functionFactory.jsonArrayInsert_postgresql();
functionFactory.unnest_postgresql();
functionFactory.generateSeries( null, "ordinality", true );
// Postgres uses # instead of ^ for XOR
functionContributions.getFunctionRegistry().patternDescriptorBuilder( "bitxor", "(?1#?2)" )

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@ -458,6 +458,18 @@ public class DB2LegacyDialect extends Dialect {
functionFactory.xmlagg();
functionFactory.unnest_emulated();
if ( supportsRecursiveCTE() ) {
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), false, true );
}
}
/**
* DB2 doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override

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@ -428,6 +428,7 @@ public class H2LegacyDialect extends Dialect {
}
functionFactory.unnest_h2( getMaximumArraySize() );
functionFactory.generateSeries_h2( getMaximumSeriesSize() );
}
/**
@ -440,6 +441,16 @@ public class H2LegacyDialect extends Dialect {
return 1000;
}
/**
* Since H2 doesn't support ordinality for the {@code system_range} function or {@code lateral},
* it's impossible to use {@code system_range} for non-constant cases.
* Luckily, correlation can be emulated, but requires that there is an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override
public @Nullable String getDefaultOrdinalityColumnName() {
return "nord";

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@ -497,6 +497,8 @@ public class HANALegacyDialect extends Dialect {
functionFactory.unnest_hana();
// functionFactory.json_table();
functionFactory.generateSeries_hana( getMaximumSeriesSize() );
if ( getVersion().isSameOrAfter(2, 0, 20 ) ) {
if ( getVersion().isSameOrAfter( 2, 0, 40 ) ) {
// Introduced in 2.0 SPS 04
@ -513,6 +515,14 @@ public class HANALegacyDialect extends Dialect {
}
}
/**
* HANA doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with the {@code xmltable} and {@code lpad} functions.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override
public SqlAstTranslatorFactory getSqlAstTranslatorFactory() {
return new StandardSqlAstTranslatorFactory() {

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@ -279,6 +279,7 @@ public class HSQLLegacyDialect extends Dialect {
}
functionFactory.unnest( "c1", "c2" );
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), true, false );
//trim() requires parameters to be cast when used as trim character
functionContributions.getFunctionRegistry().register( "trim", new TrimFunction(
@ -288,6 +289,16 @@ public class HSQLLegacyDialect extends Dialect {
) );
}
/**
* HSQLDB doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
// The maximum recursion depth of HSQLDB
return 258;
}
@Override
public @Nullable String getDefaultOrdinalityColumnName() {
return "c2";

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@ -675,8 +675,21 @@ public class MySQLLegacyDialect extends Dialect {
if ( getMySQLVersion().isSameOrAfter( 8 ) ) {
functionFactory.unnest_emulated();
}
if ( supportsRecursiveCTE() ) {
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), false, false );
}
}
}
/**
* MySQL doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
// The maximum recursion depth of MySQL
return 1000;
}
@Override
public void contributeTypes(TypeContributions typeContributions, ServiceRegistry serviceRegistry) {

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@ -335,6 +335,16 @@ public class OracleLegacyDialect extends Dialect {
functionFactory.xmlagg();
functionFactory.unnest_oracle();
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), true, false );
}
/**
* Oracle doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override

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@ -711,6 +711,7 @@ public class PostgreSQLLegacyDialect extends Dialect {
else {
functionFactory.unnest_postgresql();
}
functionFactory.generateSeries( null, "ordinality", false );
}
@Override

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@ -440,6 +440,7 @@ public class SQLServerLegacyDialect extends AbstractTransactSQLDialect {
functionFactory.leastGreatest();
functionFactory.dateTrunc_datetrunc();
functionFactory.trunc_round_datetrunc();
functionFactory.generateSeries_sqlserver( getMaximumSeriesSize() );
}
else {
functionContributions.getFunctionRegistry().register(
@ -447,6 +448,24 @@ public class SQLServerLegacyDialect extends AbstractTransactSQLDialect {
new SqlServerConvertTruncFunction( functionContributions.getTypeConfiguration() )
);
functionContributions.getFunctionRegistry().registerAlternateKey( "truncate", "trunc" );
if ( supportsRecursiveCTE() ) {
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), false, false );
}
}
}
/**
* SQL Server doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
if ( getVersion().isSameOrAfter( 16 ) ) {
return 10000;
}
else {
// The maximum recursion depth of SQL Server
return 100;
}
}

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@ -166,6 +166,17 @@ public class SybaseASELegacyDialect extends SybaseLegacyDialect {
CommonFunctionFactory functionFactory = new CommonFunctionFactory( functionContributions);
functionFactory.unnest_sybasease();
functionFactory.generateSeries_sybasease( getMaximumSeriesSize() );
}
/**
* Sybase ASE doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with the {@code xmltable} and {@code replicate} functions.
*/
protected int getMaximumSeriesSize() {
// The maximum possible value for replicating an XML tag, so that the resulting string stays below the 16K limit
// https://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc32300.1570/html/sqlug/sqlug31.htm
return 4094;
}
private static boolean isAnsiNull(DatabaseMetaData databaseMetaData) {

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@ -1,8 +1,6 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html.
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.boot.models.annotations.internal;

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@ -486,6 +486,7 @@ public class CockroachDialect extends Dialect {
functionFactory.jsonArrayInsert_postgresql();
functionFactory.unnest_postgresql();
functionFactory.generateSeries( null, "ordinality", true );
// Postgres uses # instead of ^ for XOR
functionContributions.getFunctionRegistry().patternDescriptorBuilder( "bitxor", "(?1#?2)" )

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@ -443,6 +443,16 @@ public class DB2Dialect extends Dialect {
functionFactory.xmlagg();
functionFactory.unnest_emulated();
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), false, true );
}
/**
* DB2 doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override

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@ -185,7 +185,10 @@ import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.Period;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAmount;
import java.util.Calendar;
import java.util.Date;
import java.util.HashSet;
@ -5618,12 +5621,103 @@ public abstract class Dialect implements ConversionContext, TypeContributor, Fun
* {@link Duration}.
*/
public void appendIntervalLiteral(SqlAppender appender, Duration literal) {
final int nano = literal.getNano();
final int secondsPart = literal.toSecondsPart();
final int minutesPart = literal.toMinutesPart();
final int hoursPart = literal.toHoursPart();
final long daysPart = literal.toDaysPart();
enum Unit { day, hour, minute }
final Unit unit;
if ( daysPart != 0 ) {
unit = hoursPart == 0 && minutesPart == 0 && secondsPart == 0 && nano == 0
? Unit.day
: null;
}
else if ( hoursPart != 0 ) {
unit = minutesPart == 0 && secondsPart == 0 && nano == 0
? Unit.hour
: null;
}
else if ( minutesPart != 0 ) {
unit = secondsPart == 0 && nano == 0
? Unit.minute
: null;
}
else {
unit = null;
}
appender.appendSql( "interval '" );
if ( unit != null ) {
appender.appendSql( switch( unit ) {
case day -> daysPart;
case hour -> hoursPart;
case minute -> minutesPart;
});
appender.appendSql( "' " );
appender.appendSql( unit.toString() );
}
else {
appender.appendSql( "interval '" );
appender.appendSql( literal.getSeconds() );
if ( nano > 0 ) {
appender.appendSql( '.' );
appender.appendSql( literal.getNano() );
appender.appendSql( nano );
}
appender.appendSql( "' second" );
}
}
/**
* Append a literal SQL {@code interval} representing the given Java
* {@link TemporalAmount}.
*/
public void appendIntervalLiteral(SqlAppender appender, TemporalAmount literal) {
if ( literal instanceof Duration duration ) {
appendIntervalLiteral( appender, duration );
}
else if ( literal instanceof Period period ) {
final int years = period.getYears();
final int months = period.getMonths();
final int days = period.getDays();
final boolean parenthesis = years != 0 && months != 0
|| years != 0 && days != 0
|| months != 0 && days != 0;
if ( parenthesis ) {
appender.appendSql( '(' );
}
boolean first = true;
for ( java.time.temporal.TemporalUnit unit : literal.getUnits() ) {
final long value = literal.get( unit );
if ( value != 0 ) {
if ( first ) {
first = false;
}
else {
appender.appendSql( "+" );
}
appender.appendSql( "interval '" );
appender.appendSql( value );
appender.appendSql( "' " );
if ( unit == ChronoUnit.YEARS ) {
appender.appendSql( "year" );
}
else if ( unit == ChronoUnit.MONTHS ) {
appender.appendSql( "month" );
}
else {
assert unit == ChronoUnit.DAYS;
appender.appendSql( "day" );
}
}
}
if ( parenthesis ) {
appender.appendSql( ')' );
}
}
else {
throw new IllegalArgumentException( "Unsupported temporal amount type: " + literal );
}
}
/**
* Append a literal SQL {@code uuid} representing the given Java

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@ -10,6 +10,7 @@ import java.sql.ResultSet;
import java.sql.SQLException;
import java.time.Duration;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAmount;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
@ -20,6 +21,7 @@ import java.util.Set;
import java.util.TimeZone;
import java.util.UUID;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.Incubating;
import org.hibernate.LockMode;
import org.hibernate.LockOptions;
@ -46,6 +48,7 @@ import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.exception.spi.SQLExceptionConversionDelegate;
import org.hibernate.exception.spi.ViolatedConstraintNameExtractor;
import org.hibernate.loader.ast.spi.MultiKeyLoadSizingStrategy;
import org.hibernate.mapping.CheckConstraint;
import org.hibernate.mapping.Column;
import org.hibernate.mapping.ForeignKey;
import org.hibernate.mapping.Index;
@ -1596,6 +1599,11 @@ public class DialectDelegateWrapper extends Dialect {
wrapped.appendIntervalLiteral( appender, literal );
}
@Override
public void appendIntervalLiteral(SqlAppender appender, TemporalAmount literal) {
wrapped.appendIntervalLiteral( appender, literal );
}
@Override
public void appendUUIDLiteral(SqlAppender appender, UUID literal) {
wrapped.appendUUIDLiteral( appender, literal );
@ -1625,4 +1633,216 @@ public class DialectDelegateWrapper extends Dialect {
public String getRowIdColumnString(String rowId) {
return wrapped.getRowIdColumnString( rowId );
}
@Override
public DatabaseVersion determineDatabaseVersion(DialectResolutionInfo info) {
return wrapped.determineDatabaseVersion( info );
}
@Override
public boolean isLob(int sqlTypeCode) {
return wrapped.isLob( sqlTypeCode );
}
@Override
public String getEnumTypeDeclaration(Class<? extends Enum<?>> enumType) {
return wrapped.getEnumTypeDeclaration( enumType );
}
@Override
public String[] getCreateEnumTypeCommand(String name, String[] values) {
return wrapped.getCreateEnumTypeCommand( name, values );
}
@Override
public String[] getCreateEnumTypeCommand(Class<? extends Enum<?>> enumType) {
return wrapped.getCreateEnumTypeCommand( enumType );
}
@Override
public String[] getDropEnumTypeCommand(String name) {
return wrapped.getDropEnumTypeCommand( name );
}
@Override
public String[] getDropEnumTypeCommand(Class<? extends Enum<?>> enumType) {
return wrapped.getDropEnumTypeCommand( enumType );
}
@Override
public String getCheckCondition(String columnName, Class<? extends Enum<?>> enumType) {
return wrapped.getCheckCondition( columnName, enumType );
}
@Deprecated(since = "6.5", forRemoval = true)
@Override
public String getCheckCondition(String columnName, long[] values) {
return wrapped.getCheckCondition( columnName, values );
}
@Override
public String getCheckCondition(String columnName, Long[] values) {
return wrapped.getCheckCondition( columnName, values );
}
@Override
public String getCheckCondition(String columnName, Set<?> valueSet, JdbcType jdbcType) {
return wrapped.getCheckCondition( columnName, valueSet, jdbcType );
}
@Override
public String buildStringToBooleanCast(String trueValue, String falseValue) {
return wrapped.buildStringToBooleanCast( trueValue, falseValue );
}
@Override
public String buildStringToBooleanCastDecode(String trueValue, String falseValue) {
return wrapped.buildStringToBooleanCastDecode( trueValue, falseValue );
}
@Override
public String buildStringToBooleanDecode(String trueValue, String falseValue) {
return wrapped.buildStringToBooleanDecode( trueValue, falseValue );
}
@Override
public String getDual() {
return wrapped.getDual();
}
@Override
public String getFromDualForSelectOnly() {
return wrapped.getFromDualForSelectOnly();
}
@Deprecated(since = "7.0", forRemoval = true)
@Override
public String getNativeIdentifierGeneratorStrategy() {
return wrapped.getNativeIdentifierGeneratorStrategy();
}
@Override
public int getTimeoutInSeconds(int millis) {
return wrapped.getTimeoutInSeconds( millis );
}
@Override
public String getBeforeDropStatement() {
return wrapped.getBeforeDropStatement();
}
@Override
public boolean useCrossReferenceForeignKeys() {
return wrapped.useCrossReferenceForeignKeys();
}
@Override
public String getCrossReferenceParentTableFilter() {
return wrapped.getCrossReferenceParentTableFilter();
}
@Override
public boolean supportsIsTrue() {
return wrapped.supportsIsTrue();
}
@Override
public String quoteCollation(String collation) {
return wrapped.quoteCollation( collation );
}
@Override
public boolean supportsInsertReturningRowId() {
return wrapped.supportsInsertReturningRowId();
}
@Override
public boolean supportsUpdateReturning() {
return wrapped.supportsUpdateReturning();
}
@Override
public boolean unquoteGetGeneratedKeys() {
return wrapped.unquoteGetGeneratedKeys();
}
@Override
public boolean supportsNationalizedMethods() {
return wrapped.supportsNationalizedMethods();
}
@Override
public boolean useArrayForMultiValuedParameters() {
return wrapped.useArrayForMultiValuedParameters();
}
@Override
public boolean supportsConflictClauseForInsertCTE() {
return wrapped.supportsConflictClauseForInsertCTE();
}
@Override
public boolean supportsFromClauseInUpdate() {
return wrapped.supportsFromClauseInUpdate();
}
@Override
public int getDefaultIntervalSecondScale() {
return wrapped.getDefaultIntervalSecondScale();
}
@Override
public boolean doesRoundTemporalOnOverflow() {
return wrapped.doesRoundTemporalOnOverflow();
}
@Override
public Boolean supportsBatchUpdates() {
return wrapped.supportsBatchUpdates();
}
@Override
public Boolean supportsRefCursors() {
return wrapped.supportsRefCursors();
}
@Override
public @Nullable String getDefaultOrdinalityColumnName() {
return wrapped.getDefaultOrdinalityColumnName();
}
@Override
public DmlTargetColumnQualifierSupport getDmlTargetColumnQualifierSupport() {
return wrapped.getDmlTargetColumnQualifierSupport();
}
@Override
public FunctionalDependencyAnalysisSupport getFunctionalDependencyAnalysisSupport() {
return wrapped.getFunctionalDependencyAnalysisSupport();
}
@Override
public String getCheckConstraintString(CheckConstraint checkConstraint) {
return wrapped.getCheckConstraintString( checkConstraint );
}
@Override
public String appendCheckConstraintOptions(CheckConstraint checkConstraint, String sqlCheckConstraint) {
return wrapped.appendCheckConstraintOptions( checkConstraint, sqlCheckConstraint );
}
@Override
public boolean supportsTableOptions() {
return wrapped.supportsTableOptions();
}
@Override
public boolean supportsBindingNullSqlTypeForSetNull() {
return wrapped.supportsBindingNullSqlTypeForSetNull();
}
@Override
public boolean supportsBindingNullForSetObject() {
return wrapped.supportsBindingNullForSetObject();
}
}

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@ -359,6 +359,7 @@ public class H2Dialect extends Dialect {
functionFactory.xmlpi_h2();
functionFactory.unnest_h2( getMaximumArraySize() );
functionFactory.generateSeries_h2( getMaximumSeriesSize() );
}
/**
@ -371,6 +372,16 @@ public class H2Dialect extends Dialect {
return 1000;
}
/**
* Since H2 doesn't support ordinality for the {@code system_range} function or {@code lateral},
* it's impossible to use {@code system_range} for non-constant cases.
* Luckily, correlation can be emulated, but requires that there is an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override
public @Nullable String getDefaultOrdinalityColumnName() {
return "nord";

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@ -514,6 +514,15 @@ public class HANADialect extends Dialect {
// functionFactory.xmltable();
// functionFactory.xmlextract();
functionFactory.generateSeries_hana( getMaximumSeriesSize() );
}
/**
* HANA doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with the {@code xmltable} and {@code lpad} functions.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override

View File

@ -214,6 +214,7 @@ public class HSQLDialect extends Dialect {
}
functionFactory.unnest( "c1", "c2" );
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), true, false );
//trim() requires parameters to be cast when used as trim character
functionContributions.getFunctionRegistry().register( "trim", new TrimFunction(
@ -223,6 +224,16 @@ public class HSQLDialect extends Dialect {
) );
}
/**
* HSQLDB doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
// The maximum recursion depth of HSQLDB
return 258;
}
@Override
public @Nullable String getDefaultOrdinalityColumnName() {
return "c2";

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@ -28,6 +28,7 @@ import org.hibernate.sql.ast.tree.from.NamedTableReference;
import org.hibernate.sql.ast.tree.insert.ConflictClause;
import org.hibernate.sql.ast.tree.insert.InsertSelectStatement;
import org.hibernate.sql.ast.tree.predicate.BooleanExpressionPredicate;
import org.hibernate.sql.ast.tree.predicate.ComparisonPredicate;
import org.hibernate.sql.ast.tree.predicate.InArrayPredicate;
import org.hibernate.sql.ast.tree.select.QueryPart;
import org.hibernate.sql.ast.tree.update.UpdateStatement;
@ -288,6 +289,22 @@ public class HSQLSqlAstTranslator<T extends JdbcOperation> extends AbstractSqlAs
emulateSelectTupleComparison( lhsExpressions, tuple.getExpressions(), operator, true );
}
@Override
public void visitRelationalPredicate(ComparisonPredicate comparisonPredicate) {
if ( isParameter( comparisonPredicate.getLeftHandExpression() )
&& isParameter( comparisonPredicate.getRightHandExpression() ) ) {
// HSQLDB doesn't like comparing two parameters with each other
withParameterRenderingMode(
SqlAstNodeRenderingMode.NO_PLAIN_PARAMETER,
() -> super.visitRelationalPredicate( comparisonPredicate )
);
}
else {
super.visitRelationalPredicate( comparisonPredicate );
}
}
@Override
protected void renderComparison(Expression lhs, ComparisonOperator operator, Expression rhs) {
final JdbcMappingContainer lhsExpressionType = lhs.getExpressionType();
if ( lhsExpressionType == null || lhsExpressionType.getJdbcTypeCount() != 1 ) {

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@ -660,6 +660,19 @@ public class MySQLDialect extends Dialect {
if ( getMySQLVersion().isSameOrAfter( 8 ) ) {
functionFactory.unnest_emulated();
}
if ( supportsRecursiveCTE() ) {
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), false, false );
}
}
/**
* MySQL doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
// The maximum recursion depth of MySQL
return 1000;
}
@Override

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@ -423,6 +423,16 @@ public class OracleDialect extends Dialect {
functionFactory.xmlagg();
functionFactory.unnest_oracle();
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), true, false );
}
/**
* Oracle doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
return 10000;
}
@Override

View File

@ -671,6 +671,7 @@ public class PostgreSQLDialect extends Dialect {
else {
functionFactory.unnest_postgresql();
}
functionFactory.generateSeries( null, "ordinality", false );
}
@Override

View File

@ -457,6 +457,7 @@ public class SQLServerDialect extends AbstractTransactSQLDialect {
functionFactory.leastGreatest();
functionFactory.dateTrunc_datetrunc();
functionFactory.trunc_round_datetrunc();
functionFactory.generateSeries_sqlserver( getMaximumSeriesSize() );
}
else {
functionContributions.getFunctionRegistry().register(
@ -464,6 +465,24 @@ public class SQLServerDialect extends AbstractTransactSQLDialect {
new SqlServerConvertTruncFunction( functionContributions.getTypeConfiguration() )
);
functionContributions.getFunctionRegistry().registerAlternateKey( "truncate", "trunc" );
if ( supportsRecursiveCTE() ) {
functionFactory.generateSeries_recursive( getMaximumSeriesSize(), false, false );
}
}
}
/**
* SQL Server doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with a top level recursive CTE which requires an upper bound on the amount
* of elements that the series can return.
*/
protected int getMaximumSeriesSize() {
if ( getVersion().isSameOrAfter( 16 ) ) {
return 10000;
}
else {
// The maximum recursion depth of SQL Server
return 100;
}
}

View File

@ -183,6 +183,17 @@ public class SybaseASEDialect extends SybaseDialect {
CommonFunctionFactory functionFactory = new CommonFunctionFactory( functionContributions);
functionFactory.unnest_sybasease();
functionFactory.generateSeries_sybasease( getMaximumSeriesSize() );
}
/**
* Sybase ASE doesn't support the {@code generate_series} function or {@code lateral} recursive CTEs,
* so it has to be emulated with the {@code xmltable} and {@code replicate} functions.
*/
protected int getMaximumSeriesSize() {
// The maximum possible value for replicating an XML tag, so that the resulting string stays below the 16K limit
// https://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc32300.1570/html/sqlug/sqlug31.htm
return 4094;
}
@Override

View File

@ -4287,4 +4287,46 @@ public class CommonFunctionFactory {
public void unnest_hana() {
functionRegistry.register( "unnest", new HANAUnnestFunction() );
}
/**
* Standard generate_series() function
*/
public void generateSeries(@Nullable String defaultValueColumnName, String defaultIndexSelectionExpression, boolean coerceToTimestamp) {
functionRegistry.register( "generate_series", new GenerateSeriesFunction( defaultValueColumnName, defaultIndexSelectionExpression, coerceToTimestamp, typeConfiguration ) );
}
/**
* Recursive CTE generate_series() function
*/
public void generateSeries_recursive(int maxSeriesSize, boolean supportsInterval, boolean coerceToTimestamp) {
functionRegistry.register( "generate_series", new CteGenerateSeriesFunction( maxSeriesSize, supportsInterval, coerceToTimestamp, typeConfiguration ) );
}
/**
* H2 generate_series() function
*/
public void generateSeries_h2(int maxSeriesSize) {
functionRegistry.register( "generate_series", new H2GenerateSeriesFunction( maxSeriesSize, typeConfiguration ) );
}
/**
* SQL Server generate_series() function
*/
public void generateSeries_sqlserver(int maxSeriesSize) {
functionRegistry.register( "generate_series", new SQLServerGenerateSeriesFunction( maxSeriesSize, typeConfiguration ) );
}
/**
* Sybase ASE generate_series() function
*/
public void generateSeries_sybasease(int maxSeriesSize) {
functionRegistry.register( "generate_series", new SybaseASEGenerateSeriesFunction( maxSeriesSize, typeConfiguration ) );
}
/**
* HANA generate_series() function
*/
public void generateSeries_hana(int maxSeriesSize) {
functionRegistry.register( "generate_series", new HANAGenerateSeriesFunction( maxSeriesSize, typeConfiguration ) );
}
}

View File

@ -0,0 +1,441 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.BasicValuedMapping;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.metamodel.mapping.ModelPart;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.BinaryArithmeticOperator;
import org.hibernate.query.sqm.ComparisonOperator;
import org.hibernate.query.sqm.SetOperator;
import org.hibernate.query.sqm.function.SelfRenderingSqmSetReturningFunction;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.NumericTypeCategory;
import org.hibernate.spi.NavigablePath;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.cte.CteColumn;
import org.hibernate.sql.ast.tree.cte.CteContainer;
import org.hibernate.sql.ast.tree.cte.CteStatement;
import org.hibernate.sql.ast.tree.cte.CteTable;
import org.hibernate.sql.ast.tree.cte.CteTableGroup;
import org.hibernate.sql.ast.tree.expression.BinaryArithmeticExpression;
import org.hibernate.sql.ast.tree.expression.ColumnReference;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.sql.ast.tree.expression.UnparsedNumericLiteral;
import org.hibernate.sql.ast.tree.from.FunctionTableGroup;
import org.hibernate.sql.ast.tree.from.NamedTableReference;
import org.hibernate.sql.ast.tree.from.QueryPartTableGroup;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.sql.ast.tree.predicate.ComparisonPredicate;
import org.hibernate.sql.ast.tree.predicate.Junction;
import org.hibernate.sql.ast.tree.predicate.Predicate;
import org.hibernate.sql.ast.tree.select.QueryGroup;
import org.hibernate.sql.ast.tree.select.QuerySpec;
import org.hibernate.sql.ast.tree.select.SelectStatement;
import org.hibernate.sql.results.internal.SqlSelectionImpl;
import org.hibernate.type.BasicType;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.descriptor.jdbc.JdbcType;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
* Recursive CTE based generate_series function.
*/
public class CteGenerateSeriesFunction extends NumberSeriesGenerateSeriesFunction {
public CteGenerateSeriesFunction(int maxSeriesSize, boolean supportsIntervals, boolean coerceToTimestamp, TypeConfiguration typeConfiguration) {
super(
new CteGenerateSeriesSetReturningFunctionTypeResolver(),
// Treat durations like intervals to avoid conversions
typeConfiguration.getBasicTypeRegistry().resolve(
java.time.Duration.class,
supportsIntervals ? SqlTypes.INTERVAL_SECOND : SqlTypes.DURATION
),
coerceToTimestamp,
maxSeriesSize
);
}
@Override
protected <T> SelfRenderingSqmSetReturningFunction<T> generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments, QueryEngine queryEngine) {
//noinspection unchecked
return new SelfRenderingSqmSetReturningFunction<>(
this,
this,
arguments,
getArgumentsValidator(),
getSetReturningTypeResolver(),
(AnonymousTupleType<T>) getSetReturningTypeResolver().resolveTupleType( arguments, queryEngine.getTypeConfiguration() ),
queryEngine.getCriteriaBuilder(),
getName()
) {
@Override
public TableGroup convertToSqlAst(NavigablePath navigablePath, String identifierVariable, boolean lateral, boolean canUseInnerJoins, boolean withOrdinality, SqmToSqlAstConverter walker) {
final FunctionTableGroup tableGroup = (FunctionTableGroup) super.convertToSqlAst(
navigablePath,
identifierVariable,
lateral,
canUseInnerJoins,
withOrdinality,
walker
);
final AnonymousTupleTableGroupProducer tableGroupProducer = (AnonymousTupleTableGroupProducer) tableGroup.getModelPart();
if ( !lateral ) {
return new QueryPartTableGroup(
navigablePath,
tableGroupProducer,
createCteSubquery( tableGroup, walker ),
identifierVariable,
tableGroupProducer.getColumnNames(),
tableGroup.getPrimaryTableReference().getCompatibleTableExpressions(),
lateral,
canUseInnerJoins,
walker.getCreationContext().getSessionFactory()
);
}
else {
final CteTableGroup cteTableGroup = new CteTableGroup(
canUseInnerJoins,
navigablePath,
null,
tableGroupProducer,
new NamedTableReference( CteGenerateSeriesQueryTransformer.NAME, identifierVariable ),
tableGroupProducer.getCompatibleTableExpressions()
);
walker.registerQueryTransformer( new CteGenerateSeriesQueryTransformer(
tableGroup,
cteTableGroup,
maxSeriesSize,
"i",
coerceToTimestamp
) );
return cteTableGroup;
}
}
};
}
protected static class CteGenerateSeriesQueryTransformer extends NumberSeriesQueryTransformer {
public static final String NAME = "max_series";
protected final int maxSeriesSize;
public CteGenerateSeriesQueryTransformer(FunctionTableGroup functionTableGroup, TableGroup targetTableGroup, int maxSeriesSize, String positionColumnName, boolean coerceToTimestamp) {
super( functionTableGroup, targetTableGroup, positionColumnName, coerceToTimestamp );
this.maxSeriesSize = maxSeriesSize;
}
@Override
public QuerySpec transform(CteContainer cteContainer, QuerySpec querySpec, SqmToSqlAstConverter converter) {
// First add the CTE that creates the series
if ( cteContainer.getCteStatement( CteGenerateSeriesQueryTransformer.NAME ) == null ) {
cteContainer.addCteStatement( createSeriesCte( converter ) );
}
return super.transform( cteContainer, querySpec, converter );
}
protected CteStatement createSeriesCte(SqmToSqlAstConverter converter) {
final BasicType<Long> longType = converter.getCreationContext().getTypeConfiguration()
.getBasicTypeForJavaType( Long.class );
final Expression one = new UnparsedNumericLiteral<>( "1", NumericTypeCategory.LONG, longType );
final List<CteColumn> cteColumns = List.of( new CteColumn( "i", longType ) );
final QuerySpec cteStart = new QuerySpec( false );
cteStart.getSelectClause().addSqlSelection( new SqlSelectionImpl( one ) );
final QuerySpec cteUnion = new QuerySpec( false );
final CteTableGroup cteTableGroup = new CteTableGroup( new NamedTableReference( CteGenerateSeriesQueryTransformer.NAME, "t" ) );
cteUnion.getFromClause().addRoot( cteTableGroup );
final ColumnReference tIndex = new ColumnReference( cteTableGroup.getPrimaryTableReference(), "i", longType );
final Expression nextValue = new BinaryArithmeticExpression(
tIndex,
BinaryArithmeticOperator.ADD,
one,
longType
);
cteUnion.getSelectClause().addSqlSelection( new SqlSelectionImpl( nextValue ) );
cteUnion.applyPredicate(
new ComparisonPredicate(
nextValue,
ComparisonOperator.LESS_THAN_OR_EQUAL,
new UnparsedNumericLiteral<>(
Integer.toString( maxSeriesSize ),
NumericTypeCategory.LONG,
longType
)
)
);
final QueryGroup cteContent = new QueryGroup( false, SetOperator.UNION_ALL, List.of( cteStart, cteUnion ) );
final CteStatement cteStatement = new CteStatement(
new CteTable( CteGenerateSeriesQueryTransformer.NAME, cteColumns ),
new SelectStatement( cteContent )
);
cteStatement.setRecursive();
return cteStatement;
}
}
private SelectStatement createCteSubquery(FunctionTableGroup tableGroup, SqmToSqlAstConverter walker) {
final AnonymousTupleTableGroupProducer tableGroupProducer = (AnonymousTupleTableGroupProducer) tableGroup.getModelPart();
final ModelPart indexPart = tableGroupProducer.findSubPart( CollectionPart.Nature.INDEX.getName(), null );
final ModelPart elementPart = tableGroupProducer.findSubPart( CollectionPart.Nature.ELEMENT.getName(), null );
final NumericTypeCategory numericTypeCategory = NumericTypeCategory.BIG_DECIMAL;
final BasicType<?> resultType = (BasicType<?>) elementPart.getSingleJdbcMapping();
final BasicType<Integer> integerType = walker.getCreationContext().getTypeConfiguration()
.getBasicTypeForJavaType( Integer.class );
final BasicType<Boolean> booleanType = walker.getCreationContext().getTypeConfiguration()
.getBasicTypeForJavaType( Boolean.class );
final JdbcType boundType = resultType.getJdbcType();
final boolean castTimestamp = coerceToTimestamp
&& (boundType.getDdlTypeCode() == SqlTypes.DATE || boundType.getDdlTypeCode() == SqlTypes.TIME);
final List<? extends SqlAstNode> arguments = tableGroup.getPrimaryTableReference().getFunctionExpression()
.getArguments();
final Expression start = castTimestamp
? castToTimestamp( arguments.get( 0 ), walker )
: (Expression) arguments.get( 0 );
final Expression stop = castTimestamp
? castToTimestamp( arguments.get( 1 ), walker )
: (Expression) arguments.get( 1 );
final Expression explicitStep = arguments.size() > 2 ? (Expression) arguments.get( 2 ) : null;
final Expression step = explicitStep != null
? explicitStep
: new UnparsedNumericLiteral<>( "1", numericTypeCategory, resultType );
final String cteName = "generate_series";
final List<CteColumn> cteColumns;
if ( indexPart == null ) {
cteColumns = List.of( new CteColumn( "v", resultType ) );
}
else {
cteColumns = List.of(
new CteColumn( "v", resultType ),
new CteColumn( "i", indexPart.getSingleJdbcMapping() )
);
}
// Select the start value and check if the step can progress towards the stop value
final QuerySpec cteStart = new QuerySpec( false );
if ( explicitStep == null ) {
cteStart.getSelectClause().addSqlSelection( new SqlSelectionImpl( start ) );
}
else {
// For explicit steps, we need to add the step 0 times in the initial part of the recursive CTE,
// in order for the database to recognize the correct result type of the CTE column
cteStart.getSelectClause().addSqlSelection( new SqlSelectionImpl( add(
start,
multiply( step, 0, integerType ),
walker
) ) );
}
if ( indexPart != null ) {
// ordinal is 1 based
cteStart.getSelectClause().addSqlSelection( new SqlSelectionImpl(
new UnparsedNumericLiteral<>( "1", NumericTypeCategory.INTEGER, integerType )
) );
}
// Add a predicate to ensure the start value is valid
if ( explicitStep == null ) {
// The default step is 1, so just check if start <= stop
cteStart.applyPredicate(
new ComparisonPredicate(
start,
ComparisonOperator.LESS_THAN_OR_EQUAL,
stop
)
);
}
else {
// When start <= stop, only produce an initial result if the step is positive i.e. step > step*-1
final Predicate positiveProgress = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.LESS_THAN_OR_EQUAL,
stop
),
new ComparisonPredicate(
step,
ComparisonOperator.GREATER_THAN,
multiply( step, -1, integerType )
)
),
booleanType
);
// When start >= stop, only produce an initial result if the step is negative i.e. step > step*-1
final Predicate negativeProgress = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.GREATER_THAN_OR_EQUAL,
stop
),
new ComparisonPredicate(
step,
ComparisonOperator.LESS_THAN,
multiply( step, -1, integerType )
)
),
booleanType
);
cteStart.applyPredicate(
new Junction(
Junction.Nature.DISJUNCTION,
List.of( positiveProgress, negativeProgress ),
booleanType
)
);
}
// The union part just adds the step to the previous value as long as the stop value is not reached
final QuerySpec cteUnion = new QuerySpec( false );
final CteTableGroup cteTableGroup = new CteTableGroup( new NamedTableReference( cteName, "t" ) );
cteUnion.getFromClause().addRoot( cteTableGroup );
final ColumnReference tValue = new ColumnReference( cteTableGroup.getPrimaryTableReference(), "v", resultType );
final ColumnReference tIndex = indexPart == null
? null
: new ColumnReference(
cteTableGroup.getPrimaryTableReference(),
"i",
indexPart.getSingleJdbcMapping()
);
final Expression nextValue = add( tValue, step, walker );
cteUnion.getSelectClause().addSqlSelection( new SqlSelectionImpl( nextValue ) );
if ( tIndex != null ) {
cteUnion.getSelectClause().addSqlSelection( new SqlSelectionImpl( new BinaryArithmeticExpression(
tIndex,
BinaryArithmeticOperator.ADD,
new UnparsedNumericLiteral<>( "1", NumericTypeCategory.INTEGER, integerType ),
(BasicValuedMapping) indexPart.getSingleJdbcMapping()
) ) );
}
// Add a predicate to ensure the current value is valid
if ( explicitStep == null ) {
// The default step is 1, so just check if value <= stop
cteUnion.applyPredicate(
new ComparisonPredicate(
nextValue,
ComparisonOperator.LESS_THAN_OR_EQUAL,
stop
)
);
}
else {
// When start < stop, value is only valid if it's less than or equal to stop
final Predicate positiveProgress = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.LESS_THAN,
stop
),
new ComparisonPredicate(
nextValue,
ComparisonOperator.LESS_THAN_OR_EQUAL,
stop
)
),
booleanType
);
// When start > stop, value is only valid if it's greater than or equal to stop
final Predicate negativeProgress = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.GREATER_THAN,
stop
),
new ComparisonPredicate(
nextValue,
ComparisonOperator.GREATER_THAN_OR_EQUAL,
stop
)
),
booleanType
);
cteUnion.applyPredicate(
new Junction(
Junction.Nature.DISJUNCTION,
List.of( positiveProgress, negativeProgress ),
booleanType
)
);
}
// Main query selects the columns from the CTE
final QueryGroup cteContent = new QueryGroup( false, SetOperator.UNION_ALL, List.of( cteStart, cteUnion ) );
final QuerySpec mainQuery = new QuerySpec( false );
final SelectStatement selectStatement = new SelectStatement( mainQuery );
final CteStatement cteStatement = new CteStatement(
new CteTable( cteName, cteColumns ),
new SelectStatement( cteContent )
);
cteStatement.setRecursive();
selectStatement.addCteStatement( cteStatement );
mainQuery.getFromClause().addRoot( cteTableGroup );
mainQuery.getSelectClause().addSqlSelection( new SqlSelectionImpl( tValue ) );
if ( indexPart != null ) {
mainQuery.getSelectClause().addSqlSelection( new SqlSelectionImpl( tIndex ) );
}
return selectStatement;
}
static class CteGenerateSeriesSetReturningFunctionTypeResolver extends NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver {
public CteGenerateSeriesSetReturningFunctionTypeResolver() {
super( "v", "i" );
}
public CteGenerateSeriesSetReturningFunctionTypeResolver(@Nullable String defaultValueColumnName, String defaultIndexSelectionExpression) {
super( defaultValueColumnName, defaultIndexSelectionExpression );
}
@Override
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
if ( !lateral ) {
return super.resolveFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
else {
return resolveIterationVariableBasedFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
}
}
@Override
protected void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
throw new UnsupportedOperationException( "Function expands to custom SQL AST" );
}
}

View File

@ -0,0 +1,68 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.produce.function.ArgumentsValidator;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.type.BasicType;
import java.time.Duration;
import java.util.List;
/**
* A {@link ArgumentsValidator} that validates the array type is compatible with the element type.
*/
public class GenerateSeriesArgumentTypeResolver extends AbstractFunctionArgumentTypeResolver {
private final BasicType<Duration> durationType;
public GenerateSeriesArgumentTypeResolver(BasicType<Duration> durationType) {
this.durationType = durationType;
}
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
if ( argumentIndex == 0 ) {
final MappingModelExpressible<?> mappingModelExpressible = converter.resolveFunctionImpliedReturnType();
return mappingModelExpressible != null
? mappingModelExpressible
: converter.determineValueMapping( (SqmExpression<?>) arguments.get( 1 ) );
}
else if ( argumentIndex == 1 ) {
final MappingModelExpressible<?> mappingModelExpressible = converter.resolveFunctionImpliedReturnType();
return mappingModelExpressible != null
? mappingModelExpressible
: converter.determineValueMapping( (SqmExpression<?>) arguments.get( 0 ) );
}
else {
assert argumentIndex == 2;
final MappingModelExpressible<?> implied = converter.resolveFunctionImpliedReturnType();
final MappingModelExpressible<?> firstType;
final MappingModelExpressible<?> resultType;
if ( implied != null ) {
resultType = implied;
}
else if ( (firstType = converter.determineValueMapping( (SqmExpression<?>) arguments.get( 0 ) )) != null ) {
resultType = firstType;
}
else {
resultType = converter.determineValueMapping( (SqmExpression<?>) arguments.get( 1 ) );
}
assert resultType != null;
if ( resultType.getSingleJdbcMapping().getJdbcType().isTemporal() ) {
return durationType;
}
else {
return resultType;
}
}
}
}

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@ -0,0 +1,133 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.hibernate.metamodel.mapping.JdbcMapping;
import org.hibernate.metamodel.model.domain.DomainType;
import org.hibernate.query.sqm.SqmExpressible;
import org.hibernate.query.sqm.produce.function.ArgumentsValidator;
import org.hibernate.query.sqm.produce.function.FunctionArgumentException;
import org.hibernate.query.sqm.produce.function.StandardArgumentsValidators;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.type.descriptor.jdbc.JdbcType;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
import java.util.Locale;
/**
* A {@link ArgumentsValidator} that validates the array type is compatible with the element type.
*/
public class GenerateSeriesArgumentValidator implements ArgumentsValidator {
private final ArgumentsValidator delegate;
public GenerateSeriesArgumentValidator() {
this.delegate = StandardArgumentsValidators.between( 2, 3 );
}
@Override
public void validate(
List<? extends SqmTypedNode<?>> arguments,
String functionName,
TypeConfiguration typeConfiguration) {
delegate.validate( arguments, functionName, typeConfiguration );
final SqmTypedNode<?> start = arguments.get( 0 );
final SqmTypedNode<?> stop = arguments.get( 1 );
final SqmTypedNode<?> step = arguments.size() > 2 ? arguments.get( 2 ) : null;
final SqmExpressible<?> startExpressible = start.getExpressible();
final SqmExpressible<?> stopExpressible = stop.getExpressible();
final SqmExpressible<?> stepExpressible = step == null ? null : step.getExpressible();
final DomainType<?> startType = startExpressible == null ? null : startExpressible.getSqmType();
final DomainType<?> stopType = stopExpressible == null ? null : stopExpressible.getSqmType();
final DomainType<?> stepType = stepExpressible == null ? null : stepExpressible.getSqmType();
if ( startType == null ) {
throw unknownType( functionName, arguments, 0 );
}
if ( stopType == null ) {
throw unknownType( functionName, arguments, 1 );
}
if ( startType != stopType ) {
throw new FunctionArgumentException(
String.format(
"Start and stop parameters of function '%s()' must be of the same type, but found [%s,%s]",
functionName,
startType.getTypeName(),
stopType.getTypeName()
)
);
}
final JdbcMapping type = (JdbcMapping) startType;
final JdbcType jdbcType = type.getJdbcType();
if ( jdbcType.isInteger() || jdbcType.isDecimal() ) {
if ( step != null ) {
if ( stepType == null ) {
throw unknownType( functionName, arguments, 2 );
}
if ( stepType != startType ) {
throw new FunctionArgumentException(
String.format(
"Step parameter of function '%s()' is of type '%s', but must be of the same type as start and stop [%s,%s]",
functionName,
stepType.getTypeName(),
startType.getTypeName(),
stopType.getTypeName()
)
);
}
}
}
else if ( jdbcType.isTemporal() ) {
if ( step == null ) {
throw new FunctionArgumentException(
String.format(
Locale.ROOT,
"Function %s() requires exactly 3 arguments when invoked with a temporal argument, but %d arguments given",
functionName,
arguments.size()
)
);
}
if ( stepType == null ) {
throw unknownType( functionName, arguments, 2 );
}
final JdbcType stepJdbcType = ((JdbcMapping) stepType).getJdbcType();
if ( !stepJdbcType.isInterval() && !stepJdbcType.isDuration() ) {
throw new FunctionArgumentException(
String.format(
"Step parameter of function '%s()' is of type '%s', but must be of type interval",
functionName,
stepType.getTypeName()
)
);
}
}
else {
throw new FunctionArgumentException(
String.format(
"Unsupported type '%s' for function '%s()'. Only integral, decimal and timestamp types are supported.",
startType.getTypeName(),
functionName
)
);
}
}
private FunctionArgumentException unknownType(String functionName, List<? extends SqmTypedNode<?>> arguments, int parameterIndex) {
return new FunctionArgumentException(
String.format(
"Couldn't determine type of parameter %d of function '%s()'. Argument is '%s'",
parameterIndex,
functionName,
arguments.get( parameterIndex )
)
);
}
}

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@ -0,0 +1,103 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingSetReturningFunctionDescriptor;
import org.hibernate.query.sqm.produce.function.SetReturningFunctionTypeResolver;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.type.BasicType;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.descriptor.jdbc.JdbcType;
import org.hibernate.type.spi.TypeConfiguration;
import java.time.Duration;
import java.util.List;
/**
* Standard generate_series function.
*/
public class GenerateSeriesFunction extends AbstractSqmSelfRenderingSetReturningFunctionDescriptor {
protected final boolean coerceToTimestamp;
public GenerateSeriesFunction(@Nullable String defaultValueColumnName, String defaultIndexSelectionExpression, boolean coerceToTimestamp, TypeConfiguration typeConfiguration) {
this(
new GenerateSeriesSetReturningFunctionTypeResolver(
defaultValueColumnName,
defaultIndexSelectionExpression
),
// Treat durations like intervals to avoid conversions
typeConfiguration.getBasicTypeRegistry().resolve( java.time.Duration.class, SqlTypes.INTERVAL_SECOND ),
coerceToTimestamp
);
}
protected GenerateSeriesFunction(SetReturningFunctionTypeResolver setReturningFunctionTypeResolver, BasicType<Duration> durationType) {
this( setReturningFunctionTypeResolver, durationType, false );
}
protected GenerateSeriesFunction(SetReturningFunctionTypeResolver setReturningFunctionTypeResolver, BasicType<Duration> durationType, boolean coerceToTimestamp) {
super(
"generate_series",
new GenerateSeriesArgumentValidator(),
setReturningFunctionTypeResolver,
new GenerateSeriesArgumentTypeResolver( durationType )
);
this.coerceToTimestamp = coerceToTimestamp;
}
@Override
public void render(
SqlAppender sqlAppender,
List<? extends SqlAstNode> sqlAstArguments,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
final Expression start = (Expression) sqlAstArguments.get( 0 );
final Expression stop = (Expression) sqlAstArguments.get( 1 );
final Expression step = sqlAstArguments.size() > 2 ? (Expression) sqlAstArguments.get( 2 ) : null;
renderGenerateSeries( sqlAppender, start, stop, step, tupleType, tableIdentifierVariable, walker );
}
protected void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
final JdbcType boundType = start.getExpressionType().getSingleJdbcMapping().getJdbcType();
final boolean castTimestamp = coerceToTimestamp
&& (boundType.getDdlTypeCode() == SqlTypes.DATE || boundType.getDdlTypeCode() == SqlTypes.TIME);
sqlAppender.appendSql( "generate_series(" );
if ( castTimestamp ) {
sqlAppender.appendSql( "cast(" );
start.accept( walker );
sqlAppender.appendSql( " as timestamp),cast(" );
stop.accept( walker );
sqlAppender.appendSql( " as timestamp)" );
}
else {
start.accept( walker );
sqlAppender.appendSql( ',' );
stop.accept( walker );
}
if ( step != null ) {
sqlAppender.appendSql( ',' );
step.accept( walker );
}
sqlAppender.appendSql( ')' );
if ( tupleType.findSubPart( CollectionPart.Nature.INDEX.getName(), null ) != null ) {
sqlAppender.append( " with ordinality" );
}
}
}

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/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.internal.util.NullnessHelper;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.metamodel.mapping.JdbcMapping;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.metamodel.mapping.SelectablePath;
import org.hibernate.metamodel.mapping.SqlTypedMapping;
import org.hibernate.metamodel.mapping.internal.SelectableMappingImpl;
import org.hibernate.metamodel.model.domain.DomainType;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.sqm.SqmExpressible;
import org.hibernate.query.sqm.produce.function.SetReturningFunctionTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
*
* @since 7.0
*/
public class GenerateSeriesSetReturningFunctionTypeResolver implements SetReturningFunctionTypeResolver {
protected final @Nullable String defaultValueColumnName;
protected final String defaultIndexSelectionExpression;
public GenerateSeriesSetReturningFunctionTypeResolver(@Nullable String defaultValueColumnName, String defaultIndexSelectionExpression) {
this.defaultValueColumnName = defaultValueColumnName;
this.defaultIndexSelectionExpression = defaultIndexSelectionExpression;
}
@Override
public AnonymousTupleType<?> resolveTupleType(List<? extends SqmTypedNode<?>> arguments, TypeConfiguration typeConfiguration) {
final SqmTypedNode<?> start = arguments.get( 0 );
final SqmTypedNode<?> stop = arguments.get( 1 );
final SqmExpressible<?> startExpressible = start.getExpressible();
final SqmExpressible<?> stopExpressible = stop.getExpressible();
final DomainType<?> type = NullnessHelper.coalesce(
startExpressible == null ? null : startExpressible.getSqmType(),
stopExpressible == null ? null : stopExpressible.getSqmType()
);
if ( type == null ) {
throw new IllegalArgumentException( "Couldn't determine types of arguments to function 'generate_series'" );
}
final SqmExpressible<?>[] componentTypes = new SqmExpressible<?>[]{ type, typeConfiguration.getBasicTypeForJavaType( Long.class ) };
final String[] componentNames = new String[]{ CollectionPart.Nature.ELEMENT.getName(), CollectionPart.Nature.INDEX.getName() };
return new AnonymousTupleType<>( componentTypes, componentNames );
}
@Override
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
final Expression start = (Expression) arguments.get( 0 );
final Expression stop = (Expression) arguments.get( 0 );
final JdbcMappingContainer expressionType = NullnessHelper.coalesce(
start.getExpressionType(),
stop.getExpressionType()
);
final JdbcMapping type = expressionType.getSingleJdbcMapping();
if ( type == null ) {
throw new IllegalArgumentException( "Couldn't determine types of arguments to function 'generate_series'" );
}
final SelectableMapping indexMapping = withOrdinality ? new SelectableMappingImpl(
"",
defaultIndexSelectionExpression,
new SelectablePath( CollectionPart.Nature.INDEX.getName() ),
null,
null,
null,
null,
null,
null,
null,
false,
false,
false,
false,
false,
false,
converter.getCreationContext().getTypeConfiguration().getBasicTypeForJavaType( Long.class )
) : null;
final String elementSelectionExpression = defaultValueColumnName == null
? tableIdentifierVariable
: defaultValueColumnName;
final SelectableMapping elementMapping;
if ( expressionType instanceof SqlTypedMapping typedMapping ) {
elementMapping = new SelectableMappingImpl(
"",
elementSelectionExpression,
new SelectablePath( CollectionPart.Nature.ELEMENT.getName() ),
null,
null,
typedMapping.getColumnDefinition(),
typedMapping.getLength(),
typedMapping.getPrecision(),
typedMapping.getScale(),
typedMapping.getTemporalPrecision(),
typedMapping.isLob(),
true,
false,
false,
false,
false,
type
);
}
else {
elementMapping = new SelectableMappingImpl(
"",
elementSelectionExpression,
new SelectablePath( CollectionPart.Nature.ELEMENT.getName() ),
null,
null,
null,
null,
null,
null,
null,
false,
true,
false,
false,
false,
false,
type
);
}
final SelectableMapping[] returnType;
if ( indexMapping == null ) {
returnType = new SelectableMapping[]{ elementMapping };
}
else {
returnType = new SelectableMapping[] {elementMapping, indexMapping};
}
return returnType;
}
}

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/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.util.NullnessHelper;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.metamodel.mapping.JdbcMapping;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.ModelPart;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.function.SelfRenderingSqmSetReturningFunction;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.spi.NavigablePath;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.ColumnReference;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.sql.ast.tree.expression.JdbcParameter;
import org.hibernate.sql.ast.tree.expression.Literal;
import org.hibernate.sql.ast.tree.from.FunctionTableGroup;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
* H2 generate_series function.
*
* When possible, the {@code system_range} function is used directly.
* If ordinality is requested, the arguments are temporals or anything other than literals,
* this emulation comes into play.
* It essentially renders a {@code system_range} with a specified maximum size that serves as "iteration variable".
* References to the value are replaced with expressions of the form {@code start + step * iterationVariable}
* and a condition is added either to the query or join where the function is used to ensure that the value is
* less than or equal to the stop value.
*/
public class H2GenerateSeriesFunction extends NumberSeriesGenerateSeriesFunction {
public H2GenerateSeriesFunction(int maxSeriesSize, TypeConfiguration typeConfiguration) {
super(
new H2GenerateSeriesSetReturningFunctionTypeResolver(),
// Treat durations like intervals to avoid conversions
typeConfiguration.getBasicTypeRegistry().resolve( java.time.Duration.class, SqlTypes.INTERVAL_SECOND ),
maxSeriesSize
);
}
@Override
public boolean rendersIdentifierVariable(List<SqlAstNode> arguments, SessionFactoryImplementor sessionFactory) {
// To make our lives simpler during emulation
return true;
}
@Override
protected <T> SelfRenderingSqmSetReturningFunction<T> generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments, QueryEngine queryEngine) {
//noinspection unchecked
return new SelfRenderingSqmSetReturningFunction<>(
this,
this,
arguments,
getArgumentsValidator(),
getSetReturningTypeResolver(),
(AnonymousTupleType<T>) getSetReturningTypeResolver().resolveTupleType( arguments, queryEngine.getTypeConfiguration() ),
queryEngine.getCriteriaBuilder(),
getName()
) {
@Override
public TableGroup convertToSqlAst(
NavigablePath navigablePath,
String identifierVariable,
boolean lateral,
boolean canUseInnerJoins,
boolean withOrdinality,
SqmToSqlAstConverter walker) {
// Register a transformer that adds a join predicate "start+(step*(ordinal-1))<=stop"
final FunctionTableGroup functionTableGroup = (FunctionTableGroup) super.convertToSqlAst(
navigablePath,
identifierVariable,
lateral,
canUseInnerJoins,
withOrdinality,
walker
);
//noinspection unchecked
final List<SqlAstNode> sqlArguments = (List<SqlAstNode>) functionTableGroup.getPrimaryTableReference()
.getFunctionExpression()
.getArguments();
final Expression startExpression = (Expression) sqlArguments.get( 0 );
final Expression stopExpression = (Expression) sqlArguments.get( 1 );
final Expression explicitStepExpression = sqlArguments.size() > 2
? (Expression) sqlArguments.get( 2 )
: null;
final boolean needsEmulation = needsEmulation( startExpression )
|| needsEmulation( stopExpression )
|| explicitStepExpression != null && needsEmulation( explicitStepExpression );
final ModelPart elementPart = functionTableGroup.getModelPart()
.findSubPart( CollectionPart.Nature.ELEMENT.getName(), null );
final boolean isTemporal = elementPart.getSingleJdbcMapping().getJdbcType().isTemporal();
// Only do this transformation if one of the arguments is anything but a literal or parameter,
// ordinality is requested or the result is a temporal (H2 only supports numerics in system_range)
if ( needsEmulation || withOrdinality || isTemporal ) {
// Register a query transformer to register a join predicate
walker.registerQueryTransformer( new NumberSeriesQueryTransformer(
functionTableGroup,
functionTableGroup,
"x",
coerceToTimestamp
) );
}
return functionTableGroup;
}
};
}
private static class H2GenerateSeriesSetReturningFunctionTypeResolver extends NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver {
public H2GenerateSeriesSetReturningFunctionTypeResolver() {
super( "x", "x" );
}
@Override
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
final Expression start = (Expression) arguments.get( 0 );
final Expression stop = (Expression) arguments.get( 1 );
final JdbcMappingContainer expressionType = NullnessHelper.coalesce(
start.getExpressionType(),
stop.getExpressionType()
);
final Expression explicitStep = arguments.size() > 2
? (Expression) arguments.get( 2 )
: null;
final ColumnReference joinBaseColumnReference = NullnessHelper.coalesce(
start.getColumnReference(),
stop.getColumnReference(),
explicitStep != null
? explicitStep.getColumnReference()
: null
);
final JdbcMapping type = expressionType.getSingleJdbcMapping();
if ( type == null ) {
throw new IllegalArgumentException( "Couldn't determine types of arguments to function 'generate_series'" );
}
if ( joinBaseColumnReference != null || withOrdinality || type.getJdbcType().isTemporal() ) {
return resolveIterationVariableBasedFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
else {
return super.resolveFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
}
}
@Override
protected void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
final boolean needsEmulation = needsEmulation( start )
|| needsEmulation( stop )
|| step != null && needsEmulation( step );
final ModelPart elementPart = tupleType.findSubPart( CollectionPart.Nature.ELEMENT.getName(), null );
final ModelPart ordinalityPart = tupleType.findSubPart( CollectionPart.Nature.INDEX.getName(), null );
final boolean isTemporal = elementPart.getSingleJdbcMapping().getJdbcType().isTemporal();
if ( needsEmulation || ordinalityPart != null || isTemporal ) {
final boolean startNeedsVariable = needsVariable( start );
final boolean stepNeedsVariable = step != null && needsVariable( step );
if ( startNeedsVariable || stepNeedsVariable ) {
sqlAppender.appendSql( "((values " );
char separator = '(';
if ( startNeedsVariable ) {
sqlAppender.appendSql( separator );
start.accept( walker );
separator = ',';
}
if ( stepNeedsVariable ) {
sqlAppender.appendSql( separator );
step.accept( walker );
}
sqlAppender.appendSql( ")) " );
sqlAppender.appendSql( tableIdentifierVariable );
sqlAppender.appendSql( "_" );
separator = '(';
if ( startNeedsVariable ) {
sqlAppender.appendSql( separator );
sqlAppender.appendSql( "b" );
separator = ',';
}
if ( stepNeedsVariable ) {
sqlAppender.appendSql( separator );
sqlAppender.appendSql( "s" );
}
sqlAppender.appendSql( ") join " );
}
sqlAppender.appendSql( "system_range(1," );
sqlAppender.appendSql( maxSeriesSize );
sqlAppender.appendSql( ") " );
sqlAppender.appendSql( tableIdentifierVariable );
if ( startNeedsVariable || stepNeedsVariable ) {
sqlAppender.appendSql( " on true)" );
}
}
else {
sqlAppender.appendSql( "system_range(" );
start.accept( walker );
sqlAppender.appendSql( ',' );
stop.accept( walker );
if ( step != null ) {
sqlAppender.appendSql( ',' );
step.accept( walker );
}
sqlAppender.appendSql( ") " );
sqlAppender.appendSql( tableIdentifierVariable );
}
}
private static boolean needsEmulation(Expression expression) {
return !( expression instanceof Literal || expression instanceof JdbcParameter);
}
}

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/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.function.SelfRenderingSqmSetReturningFunction;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.spi.NavigablePath;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.cte.CteColumn;
import org.hibernate.sql.ast.tree.cte.CteStatement;
import org.hibernate.sql.ast.tree.cte.CteTable;
import org.hibernate.sql.ast.tree.expression.Duration;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.sql.ast.tree.expression.SelfRenderingExpression;
import org.hibernate.sql.ast.tree.from.FunctionTableGroup;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.sql.ast.tree.select.QuerySpec;
import org.hibernate.sql.ast.tree.select.SelectStatement;
import org.hibernate.sql.results.internal.SqlSelectionImpl;
import org.hibernate.type.BasicType;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
* HANA generate_series function.
*/
public class HANAGenerateSeriesFunction extends NumberSeriesGenerateSeriesFunction {
public HANAGenerateSeriesFunction(int maxSeriesSize, TypeConfiguration typeConfiguration) {
super(
new CteGenerateSeriesSetReturningFunctionTypeResolver(),
// Treat durations like intervals to avoid conversions
typeConfiguration.getBasicTypeRegistry().resolve(
java.time.Duration.class,
SqlTypes.DURATION
),
false,
maxSeriesSize
);
}
@Override
public boolean rendersIdentifierVariable(List<SqlAstNode> arguments, SessionFactoryImplementor sessionFactory) {
// To make our lives simpler during emulation
return true;
}
@Override
protected <T> SelfRenderingSqmSetReturningFunction<T> generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments, QueryEngine queryEngine) {
//noinspection unchecked
return new SelfRenderingSqmSetReturningFunction<>(
this,
this,
arguments,
getArgumentsValidator(),
getSetReturningTypeResolver(),
(AnonymousTupleType<T>) getSetReturningTypeResolver().resolveTupleType( arguments, queryEngine.getTypeConfiguration() ),
queryEngine.getCriteriaBuilder(),
getName()
) {
@Override
public TableGroup convertToSqlAst(NavigablePath navigablePath, String identifierVariable, boolean lateral, boolean canUseInnerJoins, boolean withOrdinality, SqmToSqlAstConverter walker) {
final FunctionTableGroup tableGroup = (FunctionTableGroup) super.convertToSqlAst(
navigablePath,
identifierVariable,
lateral,
canUseInnerJoins,
withOrdinality,
walker
);
walker.registerQueryTransformer( new HANAGenerateSeriesQueryTransformer(
tableGroup,
tableGroup,
maxSeriesSize,
"i",
coerceToTimestamp
) );
return tableGroup;
}
};
}
protected static class HANAGenerateSeriesQueryTransformer extends CteGenerateSeriesFunction.CteGenerateSeriesQueryTransformer {
public HANAGenerateSeriesQueryTransformer(FunctionTableGroup functionTableGroup, TableGroup targetTableGroup, int maxSeriesSize, String positionColumnName, boolean coerceToTimestamp) {
super( functionTableGroup, targetTableGroup, maxSeriesSize, positionColumnName, coerceToTimestamp );
}
@Override
protected CteStatement createSeriesCte(SqmToSqlAstConverter converter) {
final BasicType<String> stringType = converter.getCreationContext().getTypeConfiguration()
.getBasicTypeForJavaType( String.class );
final List<CteColumn> cteColumns = List.of( new CteColumn( "v", stringType ) );
final QuerySpec query = new QuerySpec( false );
query.getSelectClause().addSqlSelection( new SqlSelectionImpl( new SelfRenderingExpression() {
@Override
public void renderToSql(SqlAppender sqlAppender, SqlAstTranslator<?> walker, SessionFactoryImplementor sessionFactory) {
sqlAppender.appendSql( "'<r>'||lpad(''," );
sqlAppender.appendSql( maxSeriesSize * 4 );
sqlAppender.appendSql( ",'<a/>')||'</r>'" );
}
@Override
public JdbcMappingContainer getExpressionType() {
return stringType;
}
} ) );
return new CteStatement( new CteTable( CteGenerateSeriesFunction.CteGenerateSeriesQueryTransformer.NAME, cteColumns ), new SelectStatement( query ) );
}
}
static class CteGenerateSeriesSetReturningFunctionTypeResolver extends NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver {
public CteGenerateSeriesSetReturningFunctionTypeResolver() {
super( "v", "i" );
}
@Override
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
return resolveIterationVariableBasedFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
}
@Override
protected void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
final boolean startNeedsVariable = needsVariable( start );
final boolean stepNeedsVariable = step != null && needsVariable( step );
if ( startNeedsVariable || stepNeedsVariable ) {
sqlAppender.appendSql( "((select" );
char separator = ' ';
if ( startNeedsVariable ) {
sqlAppender.appendSql( separator );
start.accept( walker );
sqlAppender.appendSql( " b" );
separator = ',';
}
if ( stepNeedsVariable ) {
sqlAppender.appendSql( separator );
if ( step instanceof Duration duration ) {
duration.getMagnitude().accept( walker );
}
else {
step.accept( walker );
}
sqlAppender.appendSql( " s" );
}
sqlAppender.appendSql( " from sys.dummy) " );
sqlAppender.appendSql( tableIdentifierVariable );
sqlAppender.appendSql( "_" );
sqlAppender.appendSql( " join " );
}
sqlAppender.appendSql( "xmltable('/r/a' passing " );
sqlAppender.appendSql( CteGenerateSeriesFunction.CteGenerateSeriesQueryTransformer.NAME );
sqlAppender.appendSql( ".v columns i for ordinality) " );
sqlAppender.appendSql( tableIdentifierVariable );
if ( startNeedsVariable || stepNeedsVariable ) {
sqlAppender.appendSql( " on 1=1)" );
}
}
}

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/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.engine.spi.LazySessionWrapperOptions;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.util.NullnessHelper;
import org.hibernate.metamodel.mapping.BasicValuedMapping;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.metamodel.mapping.JdbcMapping;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.metamodel.mapping.SelectablePath;
import org.hibernate.metamodel.mapping.SqlTypedMapping;
import org.hibernate.metamodel.mapping.internal.SelectableMappingImpl;
import org.hibernate.query.ReturnableType;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.spi.QueryOptions;
import org.hibernate.query.sqm.BinaryArithmeticOperator;
import org.hibernate.query.sqm.ComparisonOperator;
import org.hibernate.query.sqm.function.FunctionRenderer;
import org.hibernate.query.sqm.function.SelfRenderingFunctionSqlAstExpression;
import org.hibernate.query.sqm.produce.function.SetReturningFunctionTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.expression.NumericTypeCategory;
import org.hibernate.sql.Template;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.cte.CteContainer;
import org.hibernate.sql.ast.tree.expression.BinaryArithmeticExpression;
import org.hibernate.sql.ast.tree.expression.CastTarget;
import org.hibernate.sql.ast.tree.expression.ColumnReference;
import org.hibernate.sql.ast.tree.expression.DurationUnit;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.sql.ast.tree.expression.Literal;
import org.hibernate.sql.ast.tree.expression.QueryLiteral;
import org.hibernate.sql.ast.tree.expression.QueryTransformer;
import org.hibernate.sql.ast.tree.expression.SelfRenderingSqlFragmentExpression;
import org.hibernate.sql.ast.tree.expression.UnparsedNumericLiteral;
import org.hibernate.sql.ast.tree.from.FunctionTableGroup;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.sql.ast.tree.predicate.ComparisonPredicate;
import org.hibernate.sql.ast.tree.predicate.Junction;
import org.hibernate.sql.ast.tree.predicate.Predicate;
import org.hibernate.sql.ast.tree.predicate.PredicateContainer;
import org.hibernate.sql.ast.tree.select.QuerySpec;
import org.hibernate.sql.ast.tree.select.SelectStatement;
import org.hibernate.sql.exec.spi.JdbcOperationQuerySelect;
import org.hibernate.sql.results.internal.SqlSelectionImpl;
import org.hibernate.type.BasicType;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.descriptor.jdbc.JdbcType;
import org.hibernate.type.spi.TypeConfiguration;
import java.sql.Timestamp;
import java.time.Duration;
import java.util.List;
/**
* The base for generate_series function implementations that use a static number source.
*/
public abstract class NumberSeriesGenerateSeriesFunction extends GenerateSeriesFunction {
protected final int maxSeriesSize;
public NumberSeriesGenerateSeriesFunction(@Nullable String defaultValueColumnName, String defaultIndexSelectionExpression, boolean coerceToTimestamp, TypeConfiguration typeConfiguration, int maxSeriesSize) {
super( defaultValueColumnName, defaultIndexSelectionExpression, coerceToTimestamp, typeConfiguration );
this.maxSeriesSize = maxSeriesSize;
}
public NumberSeriesGenerateSeriesFunction(SetReturningFunctionTypeResolver setReturningFunctionTypeResolver, BasicType<Duration> durationType, int maxSeriesSize) {
super( setReturningFunctionTypeResolver, durationType );
this.maxSeriesSize = maxSeriesSize;
}
public NumberSeriesGenerateSeriesFunction(SetReturningFunctionTypeResolver setReturningFunctionTypeResolver, BasicType<Duration> durationType, boolean coerceToTimestamp, int maxSeriesSize) {
super( setReturningFunctionTypeResolver, durationType, coerceToTimestamp );
this.maxSeriesSize = maxSeriesSize;
}
@Override
protected abstract void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker);
/**
* Returns whether a variable (e.g. through values clause) shall be introduced for an expression,
* which is passed as argument to the {@code generate_series} function.
* Since the selection expression of the value column that this function returns must be transformed
* to the form {@code start + step * ( iterationVariable - 1 )}, it is vital that {@code start} and {@code step}
* can be rendered to a {@code String} during SQL AST build time for {@link SelectableMapping#getSelectionExpression()}.
* If that isn't possible because the expression is too complex, a variable needs to be introduced which is then used
* instead of the original expression.
*/
protected static boolean needsVariable(Expression expression) {
return !( expression instanceof Literal || expression instanceof ColumnReference );
}
public static Expression add(Expression left, Expression right, SqmToSqlAstConverter converter) {
if ( right instanceof org.hibernate.sql.ast.tree.expression.Duration duration ) {
final BasicType<?> nodeType = (BasicType<?>) left.getExpressionType().getSingleJdbcMapping();
final FunctionRenderer timestampadd = (FunctionRenderer) converter.getCreationContext().getSessionFactory()
.getQueryEngine().getSqmFunctionRegistry().findFunctionDescriptor( "timestampadd" );
return new SelfRenderingFunctionSqlAstExpression(
"timestampadd",
timestampadd,
List.of(
new DurationUnit( duration.getUnit(), duration.getExpressionType() ),
duration.getMagnitude(),
left
),
nodeType,
nodeType
);
}
else {
return new BinaryArithmeticExpression(
left,
BinaryArithmeticOperator.ADD,
right,
(BasicValuedMapping) left.getExpressionType()
);
}
}
public static Expression multiply(Expression left, int multiplier, BasicType<Integer> integerType) {
return multiply( left, new UnparsedNumericLiteral<>( Integer.toString( multiplier ), NumericTypeCategory.INTEGER, integerType ) );
}
public static Expression multiply(Expression left, Expression multiplier) {
if ( left instanceof org.hibernate.sql.ast.tree.expression.Duration duration ) {
return new org.hibernate.sql.ast.tree.expression.Duration(
multiply( duration.getMagnitude(), multiplier ),
duration.getUnit(),
duration.getExpressionType()
);
}
else {
return new BinaryArithmeticExpression(
left,
BinaryArithmeticOperator.MULTIPLY,
multiplier,
(BasicValuedMapping) left.getExpressionType()
);
}
}
static Expression castToTimestamp(SqlAstNode node, SqmToSqlAstConverter converter) {
final BasicType<?> nodeType = (BasicType<?>) ((Expression) node).getExpressionType().getSingleJdbcMapping();
final FunctionRenderer cast = (FunctionRenderer) converter.getCreationContext().getSessionFactory().getQueryEngine()
.getSqmFunctionRegistry().findFunctionDescriptor( "cast" );
final BasicType<?> timestampType = converter.getCreationContext().getTypeConfiguration()
.getBasicTypeForJavaType( Timestamp.class );
return new SelfRenderingFunctionSqlAstExpression(
"cast",
cast,
List.of( node, new CastTarget( timestampType ) ),
nodeType,
nodeType
);
}
protected static class NumberSeriesQueryTransformer implements QueryTransformer {
protected final FunctionTableGroup functionTableGroup;
protected final TableGroup targetTableGroup;
protected final String positionColumnName;
protected final boolean coerceToTimestamp;
public NumberSeriesQueryTransformer(FunctionTableGroup functionTableGroup, TableGroup targetTableGroup, String positionColumnName, boolean coerceToTimestamp) {
this.functionTableGroup = functionTableGroup;
this.targetTableGroup = targetTableGroup;
this.positionColumnName = positionColumnName;
this.coerceToTimestamp = coerceToTimestamp;
}
@Override
public QuerySpec transform(CteContainer cteContainer, QuerySpec querySpec, SqmToSqlAstConverter converter) {
//noinspection unchecked
final List<SqlAstNode> arguments = (List<SqlAstNode>) functionTableGroup.getPrimaryTableReference()
.getFunctionExpression()
.getArguments();
final JdbcType boundType = ((Expression) arguments.get( 0 )).getExpressionType().getSingleJdbcMapping().getJdbcType();
final boolean castTimestamp = coerceToTimestamp
&& (boundType.getDdlTypeCode() == SqlTypes.DATE || boundType.getDdlTypeCode() == SqlTypes.TIME);
final Expression start = castTimestamp
? castToTimestamp( arguments.get( 0 ), converter )
: (Expression) arguments.get( 0 );
final Expression stop = castTimestamp
? castToTimestamp( arguments.get( 1 ), converter )
: (Expression) arguments.get( 1 );
final Expression explicitStep = arguments.size() > 2
? (Expression) arguments.get( 2 )
: null;
final TableGroup parentTableGroup = querySpec.getFromClause().queryTableGroups(
tg -> tg.findTableGroupJoin( targetTableGroup ) == null ? null : tg
);
final PredicateContainer predicateContainer;
if ( parentTableGroup != null ) {
predicateContainer = parentTableGroup.findTableGroupJoin( targetTableGroup );
}
else {
predicateContainer = querySpec;
}
final BasicType<Integer> integerType = converter.getCreationContext()
.getSessionFactory()
.getNodeBuilder()
.getIntegerType();
final Expression oneBasedOrdinal = new ColumnReference(
functionTableGroup.getPrimaryTableReference().getIdentificationVariable(),
positionColumnName,
false,
null,
integerType
);
final Expression one = new QueryLiteral<>( 1, integerType );
final Expression zeroBasedOrdinal = new BinaryArithmeticExpression(
oneBasedOrdinal,
BinaryArithmeticOperator.SUBTRACT,
one,
integerType
);
final Expression stepExpression = explicitStep != null
? multiply( explicitStep, zeroBasedOrdinal )
: zeroBasedOrdinal;
final Expression nextValue = add( start, stepExpression, converter );
// Add a predicate to ensure the current value is valid
if ( explicitStep == null ) {
// The default step is 1, so just check if value <= stop
predicateContainer.applyPredicate(
new ComparisonPredicate(
nextValue,
ComparisonOperator.LESS_THAN_OR_EQUAL,
stop
)
);
}
else {
// When start < stop, step must be positive and value is only valid if it's less than or equal to stop
final BasicType<Boolean> booleanType = converter.getCreationContext()
.getSessionFactory()
.getNodeBuilder()
.getBooleanType();
final Predicate positiveProgress = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.LESS_THAN,
stop
),
new ComparisonPredicate(
explicitStep,
ComparisonOperator.GREATER_THAN,
multiply( explicitStep, -1, integerType )
),
new ComparisonPredicate(
nextValue,
ComparisonOperator.LESS_THAN_OR_EQUAL,
stop
)
),
booleanType
);
// When start > stop, step must be negative and value is only valid if it's greater than or equal to stop
final Predicate negativeProgress = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.GREATER_THAN,
stop
),
new ComparisonPredicate(
explicitStep,
ComparisonOperator.LESS_THAN,
multiply( explicitStep, -1, integerType )
),
new ComparisonPredicate(
nextValue,
ComparisonOperator.GREATER_THAN_OR_EQUAL,
stop
)
),
booleanType
);
final Predicate initialValue = new Junction(
Junction.Nature.CONJUNCTION,
List.of(
new ComparisonPredicate(
start,
ComparisonOperator.EQUAL,
stop
),
new ComparisonPredicate(
oneBasedOrdinal,
ComparisonOperator.EQUAL,
one
)
),
booleanType
);
predicateContainer.applyPredicate(
new Junction(
Junction.Nature.DISJUNCTION,
List.of( positiveProgress, negativeProgress, initialValue ),
booleanType
)
);
}
return querySpec;
}
}
protected static class NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver extends GenerateSeriesSetReturningFunctionTypeResolver {
public NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver(@Nullable String defaultValueColumnName, String defaultIndexSelectionExpression) {
super( defaultValueColumnName, defaultIndexSelectionExpression );
}
protected SelectableMapping[] resolveIterationVariableBasedFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
final Expression start = (Expression) arguments.get( 0 );
final Expression stop = (Expression) arguments.get( 0 );
final JdbcMappingContainer expressionType = NullnessHelper.coalesce(
start.getExpressionType(),
stop.getExpressionType()
);
final Expression explicitStep = arguments.size() > 2
? (Expression) arguments.get( 2 )
: null;
final JdbcMapping type = expressionType.getSingleJdbcMapping();
if ( type == null ) {
throw new IllegalArgumentException(
"Couldn't determine types of arguments to function 'generate_series'" );
}
final SelectableMapping indexMapping = withOrdinality ? new SelectableMappingImpl(
"",
defaultIndexSelectionExpression,
new SelectablePath( CollectionPart.Nature.INDEX.getName() ),
null,
null,
null,
null,
null,
null,
null,
false,
false,
false,
false,
false,
false,
converter.getCreationContext().getTypeConfiguration().getBasicTypeForJavaType( Long.class )
) : null;
//t.x+(1*(s.x-1))
final String startExpression = getStartExpression( start, tableIdentifierVariable, converter );
final String stepExpression = getStepExpression( explicitStep, tableIdentifierVariable, converter );
final String customReadExpression;
if ( type.getJdbcType().isTemporal() ) {
final org.hibernate.sql.ast.tree.expression.Duration step = (org.hibernate.sql.ast.tree.expression.Duration) explicitStep;
customReadExpression = timestampadd( startExpression, stepExpression, type, step, converter );
}
else {
customReadExpression = startExpression + "+" + stepExpression;
}
final String elementSelectionExpression = defaultValueColumnName == null
? tableIdentifierVariable
: defaultValueColumnName;
final SelectableMapping elementMapping;
if ( expressionType instanceof SqlTypedMapping typedMapping ) {
elementMapping = new SelectableMappingImpl(
"",
elementSelectionExpression,
new SelectablePath( CollectionPart.Nature.ELEMENT.getName() ),
customReadExpression,
null,
typedMapping.getColumnDefinition(),
typedMapping.getLength(),
typedMapping.getPrecision(),
typedMapping.getScale(),
typedMapping.getTemporalPrecision(),
typedMapping.isLob(),
true,
false,
false,
false,
false,
type
);
}
else {
elementMapping = new SelectableMappingImpl(
"",
elementSelectionExpression,
new SelectablePath( CollectionPart.Nature.ELEMENT.getName() ),
customReadExpression,
null,
null,
null,
null,
null,
null,
false,
true,
false,
false,
false,
false,
type
);
}
final SelectableMapping[] returnType;
if ( indexMapping == null ) {
returnType = new SelectableMapping[] {elementMapping};
}
else {
returnType = new SelectableMapping[] {elementMapping, indexMapping};
}
return returnType;
}
private static String timestampadd(String startExpression, String stepExpression, JdbcMapping type, org.hibernate.sql.ast.tree.expression.Duration duration, SqmToSqlAstConverter converter) {
final FunctionRenderer renderer = (FunctionRenderer) converter.getCreationContext().getSessionFactory()
.getQueryEngine().getSqmFunctionRegistry().findFunctionDescriptor( "timestampadd" );
final QuerySpec fakeQuery = new QuerySpec( true );
fakeQuery.getSelectClause().addSqlSelection( new SqlSelectionImpl(
new SelfRenderingFunctionSqlAstExpression(
"timestampadd",
renderer,
List.of(
new DurationUnit( duration.getUnit(), duration.getExpressionType() ),
new SelfRenderingSqlFragmentExpression( stepExpression, duration.getExpressionType() ),
new SelfRenderingSqlFragmentExpression( startExpression, type )
),
(ReturnableType<?>) type,
type
)
) );
final SqlAstTranslator<JdbcOperationQuerySelect> translator = converter.getCreationContext()
.getSessionFactory().getJdbcServices().getDialect().getSqlAstTranslatorFactory()
.buildSelectTranslator( converter.getCreationContext().getSessionFactory(), new SelectStatement( fakeQuery ) );
final JdbcOperationQuerySelect operation = translator.translate( null, QueryOptions.NONE );
final String sqlString = operation.getSqlString();
assert sqlString.startsWith( "select " );
final int startIndex = "select ".length();
final int fromIndex = sqlString.lastIndexOf( " from" );
return fromIndex == -1
? sqlString.substring( startIndex )
: sqlString.substring( startIndex, fromIndex );
}
private String getStartExpression(Expression expression, String tableIdentifierVariable, SqmToSqlAstConverter walker) {
return getExpression( expression, tableIdentifierVariable, "b", walker );
}
private String getStepExpression(@Nullable Expression explicitStep, String tableIdentifierVariable, SqmToSqlAstConverter walker) {
if ( explicitStep == null ) {
return "(" + Template.TEMPLATE + "." + defaultIndexSelectionExpression + "-1)";
}
else {
return "(" + getExpression( explicitStep, tableIdentifierVariable, "s", walker ) + "*(" + Template.TEMPLATE + "." + defaultIndexSelectionExpression + "-1))";
}
}
private String getExpression(Expression expression, String tableIdentifierVariable, String syntheticColumnName, SqmToSqlAstConverter walker) {
if ( expression instanceof Literal literal ) {
final SessionFactoryImplementor sessionFactory = walker.getCreationContext().getSessionFactory();
final LazySessionWrapperOptions wrapperOptions = new LazySessionWrapperOptions( sessionFactory );
try {
//noinspection unchecked
return literal.getJdbcMapping().getJdbcLiteralFormatter().toJdbcLiteral(
literal.getLiteralValue(),
sessionFactory.getJdbcServices().getDialect(),
wrapperOptions
);
}
finally {
wrapperOptions.cleanup();
}
}
else if ( expression instanceof ColumnReference columnReference ) {
return columnReference.getExpressionText();
}
else {
return tableIdentifierVariable + "_." + syntheticColumnName;
}
}
}
}

View File

@ -0,0 +1,213 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.util.NullnessHelper;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.metamodel.mapping.JdbcMapping;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.ModelPart;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.function.SelfRenderingSqmSetReturningFunction;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.spi.NavigablePath;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.Duration;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.sql.ast.tree.from.FunctionTableGroup;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
* SQL Server generate_series function.
*
* When possible, the {@code generate_series} function is used directly.
* If ordinality is requested or the arguments are temporals, this emulation comes into play.
* It essentially renders a {@code generate_series} with a specified maximum size that serves as "iteration variable".
* References to the value are replaced with expressions of the form {@code start + step * iterationVariable}
* and a condition is added either to the query or join where the function is used to ensure that the value is
* less than or equal to the stop value.
*/
public class SQLServerGenerateSeriesFunction extends NumberSeriesGenerateSeriesFunction {
public SQLServerGenerateSeriesFunction(int maxSeriesSize, TypeConfiguration typeConfiguration) {
super(
new SQLServerGenerateSeriesSetReturningFunctionTypeResolver(),
// Treat durations like intervals to avoid conversions
typeConfiguration.getBasicTypeRegistry().resolve( java.time.Duration.class, SqlTypes.DURATION ),
maxSeriesSize
);
}
@Override
public boolean rendersIdentifierVariable(List<SqlAstNode> arguments, SessionFactoryImplementor sessionFactory) {
// To make our lives simpler during emulation
return true;
}
@Override
protected <T> SelfRenderingSqmSetReturningFunction<T> generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments, QueryEngine queryEngine) {
//noinspection unchecked
return new SelfRenderingSqmSetReturningFunction<>(
this,
this,
arguments,
getArgumentsValidator(),
getSetReturningTypeResolver(),
(AnonymousTupleType<T>) getSetReturningTypeResolver().resolveTupleType( arguments, queryEngine.getTypeConfiguration() ),
queryEngine.getCriteriaBuilder(),
getName()
) {
@Override
public TableGroup convertToSqlAst(
NavigablePath navigablePath,
String identifierVariable,
boolean lateral,
boolean canUseInnerJoins,
boolean withOrdinality,
SqmToSqlAstConverter walker) {
// Register a transformer that adds a join predicate "start+(step*(ordinal-1))<=stop"
final FunctionTableGroup functionTableGroup = (FunctionTableGroup) super.convertToSqlAst(
navigablePath,
identifierVariable,
lateral,
canUseInnerJoins,
withOrdinality,
walker
);
final ModelPart elementPart = functionTableGroup.getModelPart()
.findSubPart( CollectionPart.Nature.ELEMENT.getName(), null );
final boolean isTemporal = elementPart.getSingleJdbcMapping().getJdbcType().isTemporal();
// Only do this transformation if ordinality is requested
// or the result is a temporal (SQL Server only supports numerics in system_range)
if ( withOrdinality || isTemporal ) {
// Register a query transformer to register a join predicate
walker.registerQueryTransformer( new NumberSeriesQueryTransformer(
functionTableGroup,
functionTableGroup,
"value",
coerceToTimestamp
) );
}
return functionTableGroup;
}
};
}
private static class SQLServerGenerateSeriesSetReturningFunctionTypeResolver extends NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver {
public SQLServerGenerateSeriesSetReturningFunctionTypeResolver() {
super( "value", "value" );
}
@Override
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
final Expression start = (Expression) arguments.get( 0 );
final Expression stop = (Expression) arguments.get( 1 );
final JdbcMappingContainer expressionType = NullnessHelper.coalesce(
start.getExpressionType(),
stop.getExpressionType()
);
final JdbcMapping type = expressionType.getSingleJdbcMapping();
if ( type == null ) {
throw new IllegalArgumentException( "Couldn't determine types of arguments to function 'generate_series'" );
}
if ( withOrdinality || type.getJdbcType().isTemporal() ) {
return resolveIterationVariableBasedFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
else {
return super.resolveFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
}
}
@Override
protected void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
final ModelPart elementPart = tupleType.findSubPart( CollectionPart.Nature.ELEMENT.getName(), null );
final ModelPart ordinalityPart = tupleType.findSubPart( CollectionPart.Nature.INDEX.getName(), null );
final boolean isTemporal = elementPart.getSingleJdbcMapping().getJdbcType().isTemporal();
if ( ordinalityPart != null || isTemporal ) {
final boolean startNeedsEmulation = needsVariable( start );
final boolean stepNeedsEmulation = step != null && needsVariable( step );
if ( startNeedsEmulation || stepNeedsEmulation ) {
sqlAppender.appendSql( "((values " );
char separator = '(';
if ( startNeedsEmulation ) {
sqlAppender.appendSql( separator );
start.accept( walker );
separator = ',';
}
if ( stepNeedsEmulation ) {
sqlAppender.appendSql( separator );
if ( step instanceof Duration duration ) {
duration.getMagnitude().accept( walker );
}
else {
step.accept( walker );
}
}
sqlAppender.appendSql( ")) " );
sqlAppender.appendSql( tableIdentifierVariable );
sqlAppender.appendSql( "_" );
separator = '(';
if ( startNeedsEmulation ) {
sqlAppender.appendSql( separator );
sqlAppender.appendSql( "b" );
separator = ',';
}
if ( stepNeedsEmulation ) {
sqlAppender.appendSql( separator );
sqlAppender.appendSql( "s" );
}
sqlAppender.appendSql( ") join " );
}
sqlAppender.appendSql( "generate_series(1," );
sqlAppender.appendSql( maxSeriesSize );
sqlAppender.appendSql( ") " );
sqlAppender.appendSql( tableIdentifierVariable );
if ( startNeedsEmulation || stepNeedsEmulation ) {
sqlAppender.appendSql( " on 1=1)" );
}
}
else {
sqlAppender.appendSql( "generate_series(" );
start.accept( walker );
sqlAppender.appendSql( ',' );
stop.accept( walker );
if ( step != null ) {
sqlAppender.appendSql( ',' );
step.accept( walker );
}
sqlAppender.appendSql( ") " );
sqlAppender.appendSql( tableIdentifierVariable );
}
}
}

View File

@ -0,0 +1,166 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.dialect.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.function.SelfRenderingSqmSetReturningFunction;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.spi.NavigablePath;
import org.hibernate.sql.ast.SqlAstTranslator;
import org.hibernate.sql.ast.spi.SqlAppender;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.Duration;
import org.hibernate.sql.ast.tree.expression.Expression;
import org.hibernate.sql.ast.tree.from.FunctionTableGroup;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
* Sybase ASE generate_series function.
*
* This implementation first replicates an XML tag with a specified maximum size with the {@code replicate} function
* and then uses {@code xmltable} to produce rows for every generated element.
* References to the value are replaced with expressions of the form {@code start + step * iterationVariable}
* and a condition is added either to the query or join where the function is used to ensure that the value is
* less than or equal to the stop value.
*/
public class SybaseASEGenerateSeriesFunction extends NumberSeriesGenerateSeriesFunction {
public SybaseASEGenerateSeriesFunction(int maxSeriesSize, TypeConfiguration typeConfiguration) {
super(
new SybaseASEGenerateSeriesSetReturningFunctionTypeResolver(),
// Treat durations like intervals to avoid conversions
typeConfiguration.getBasicTypeRegistry().resolve( java.time.Duration.class, SqlTypes.DURATION ),
maxSeriesSize
);
}
@Override
public boolean rendersIdentifierVariable(List<SqlAstNode> arguments, SessionFactoryImplementor sessionFactory) {
// To make our lives simpler during emulation
return true;
}
@Override
protected <T> SelfRenderingSqmSetReturningFunction<T> generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments, QueryEngine queryEngine) {
//noinspection unchecked
return new SelfRenderingSqmSetReturningFunction<>(
this,
this,
arguments,
getArgumentsValidator(),
getSetReturningTypeResolver(),
(AnonymousTupleType<T>) getSetReturningTypeResolver().resolveTupleType( arguments, queryEngine.getTypeConfiguration() ),
queryEngine.getCriteriaBuilder(),
getName()
) {
@Override
public TableGroup convertToSqlAst(
NavigablePath navigablePath,
String identifierVariable,
boolean lateral,
boolean canUseInnerJoins,
boolean withOrdinality,
SqmToSqlAstConverter walker) {
// Register a transformer that adds a join predicate "start+(step*(ordinal-1))<=stop"
final FunctionTableGroup functionTableGroup = (FunctionTableGroup) super.convertToSqlAst(
navigablePath,
identifierVariable,
lateral,
canUseInnerJoins,
withOrdinality,
walker
);
// Register a query transformer to register a join predicate
walker.registerQueryTransformer( new NumberSeriesQueryTransformer(
functionTableGroup,
functionTableGroup,
"i",
coerceToTimestamp
) );
return functionTableGroup;
}
};
}
private static class SybaseASEGenerateSeriesSetReturningFunctionTypeResolver extends NumberSeriesGenerateSeriesSetReturningFunctionTypeResolver {
public SybaseASEGenerateSeriesSetReturningFunctionTypeResolver() {
super( "v", "i" );
}
@Override
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
SqmToSqlAstConverter converter) {
return resolveIterationVariableBasedFunctionReturnType( arguments, tableIdentifierVariable, lateral, withOrdinality, converter );
}
}
@Override
protected void renderGenerateSeries(
SqlAppender sqlAppender,
Expression start,
Expression stop,
@Nullable Expression step,
AnonymousTupleTableGroupProducer tupleType,
String tableIdentifierVariable,
SqlAstTranslator<?> walker) {
final boolean startNeedsEmulation = needsVariable( start );
final boolean stepNeedsEmulation = step != null && needsVariable( step );
if ( startNeedsEmulation || stepNeedsEmulation ) {
sqlAppender.appendSql( "((select" );
char separator = ' ';
if ( startNeedsEmulation ) {
sqlAppender.appendSql( separator );
start.accept( walker );
separator = ',';
}
if ( stepNeedsEmulation ) {
sqlAppender.appendSql( separator );
if ( step instanceof Duration duration ) {
duration.getMagnitude().accept( walker );
}
else {
step.accept( walker );
}
}
sqlAppender.appendSql( ") " );
sqlAppender.appendSql( tableIdentifierVariable );
sqlAppender.appendSql( "_" );
separator = '(';
if ( startNeedsEmulation ) {
sqlAppender.appendSql( separator );
sqlAppender.appendSql( "b" );
separator = ',';
}
if ( stepNeedsEmulation ) {
sqlAppender.appendSql( separator );
sqlAppender.appendSql( "s" );
}
sqlAppender.appendSql( ") join " );
}
sqlAppender.appendSql( "xmltable('/r/a' passing '<r>'+replicate('<a/>'," );
sqlAppender.appendSql( maxSeriesSize );
sqlAppender.appendSql( ")+'</r>' columns i bigint for ordinality, v varchar(255) path '.') " );
sqlAppender.appendSql( tableIdentifierVariable );
if ( startNeedsEmulation || stepNeedsEmulation ) {
sqlAppender.appendSql( " on 1=1)" );
}
}
}

View File

@ -20,6 +20,7 @@ import org.hibernate.metamodel.mapping.internal.SelectableMappingImpl;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.sqm.SqmExpressible;
import org.hibernate.query.sqm.produce.function.SetReturningFunctionTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.Expression;
@ -84,8 +85,9 @@ public class UnnestSetReturningFunctionTypeResolver implements SetReturningFunct
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
TypeConfiguration typeConfiguration) {
SqmToSqlAstConverter converter) {
final Expression expression = (Expression) arguments.get( 0 );
final JdbcMappingContainer expressionType = expression.getExpressionType();
if ( expressionType == null ) {
@ -112,7 +114,7 @@ public class UnnestSetReturningFunctionTypeResolver implements SetReturningFunct
false,
false,
false,
typeConfiguration.getBasicTypeForJavaType( Long.class )
converter.getCreationContext().getTypeConfiguration().getBasicTypeForJavaType( Long.class )
) : null;
final BasicType<?> elementType = pluralType.getElementType();

View File

@ -4,15 +4,19 @@
*/
package org.hibernate.dialect.function.array;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor;
import org.hibernate.query.sqm.produce.function.ArgumentTypesValidator;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.produce.function.FunctionParameterType;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.type.BasicPluralType;
import java.util.List;
/**
* Encapsulates the validator, return type and argument type resolvers for the array_contains function.
* Subclasses only have to implement the rendering.
@ -35,7 +39,7 @@ public abstract class AbstractArrayFillFunction extends AbstractSqmSelfRendering
return "(OBJECT element, INTEGER elementCount)";
}
private static class ArrayFillArgumentsValidator implements FunctionArgumentTypeResolver {
private static class ArrayFillArgumentsValidator extends AbstractFunctionArgumentTypeResolver {
public static final FunctionArgumentTypeResolver INSTANCE = new ArrayFillArgumentsValidator();
@ -43,10 +47,7 @@ public abstract class AbstractArrayFillFunction extends AbstractSqmSelfRendering
}
@Override
public MappingModelExpressible<?> resolveFunctionArgumentType(
SqmFunction<?> function,
int argumentIndex,
SqmToSqlAstConverter converter) {
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
if ( argumentIndex == 0 ) {
final MappingModelExpressible<?> impliedReturnType = converter.resolveFunctionImpliedReturnType();
return impliedReturnType instanceof BasicPluralType<?, ?>

View File

@ -4,13 +4,20 @@
*/
package org.hibernate.dialect.function.array;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor;
import org.hibernate.query.sqm.produce.function.ArgumentTypesValidator;
import org.hibernate.query.sqm.produce.function.FunctionParameterType;
import org.hibernate.query.sqm.produce.function.StandardArgumentsValidators;
import org.hibernate.query.sqm.produce.function.StandardFunctionReturnTypeResolvers;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.type.spi.TypeConfiguration;
import java.util.List;
/**
* Encapsulates the validator, return type and argument type resolvers for the array_position functions.
* Subclasses only have to implement the rendering.
@ -30,7 +37,9 @@ public abstract class AbstractArrayPositionFunction extends AbstractSqmSelfRende
FunctionParameterType.INTEGER
),
StandardFunctionReturnTypeResolvers.invariant( typeConfiguration.standardBasicTypeForJavaType( Integer.class ) ),
(function, argumentIndex, converter) -> {
new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
if ( argumentIndex == 2 ) {
return converter.getCreationContext()
.getSessionFactory()
@ -39,12 +48,13 @@ public abstract class AbstractArrayPositionFunction extends AbstractSqmSelfRende
}
else {
return ArrayAndElementArgumentTypeResolver.DEFAULT_INSTANCE.resolveFunctionArgumentType(
function,
arguments,
argumentIndex,
converter
);
}
}
}
);
}

View File

@ -4,21 +4,24 @@
*/
package org.hibernate.dialect.function.array;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.internal.util.collections.ArrayHelper;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.metamodel.model.domain.DomainType;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import org.hibernate.type.BasicPluralType;
import java.util.List;
/**
* A {@link FunctionArgumentTypeResolver} that resolves the array argument type based on the element argument type
* or the element argument type based on the array argument type.
*/
public class ArrayAndElementArgumentTypeResolver implements FunctionArgumentTypeResolver {
public class ArrayAndElementArgumentTypeResolver extends AbstractFunctionArgumentTypeResolver {
public static final FunctionArgumentTypeResolver DEFAULT_INSTANCE = new ArrayAndElementArgumentTypeResolver( 0, 1 );
@ -31,13 +34,10 @@ public class ArrayAndElementArgumentTypeResolver implements FunctionArgumentType
}
@Override
public MappingModelExpressible<?> resolveFunctionArgumentType(
SqmFunction<?> function,
int argumentIndex,
SqmToSqlAstConverter converter) {
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
if ( argumentIndex == arrayIndex ) {
for ( int elementIndex : elementIndexes ) {
final SqmTypedNode<?> node = function.getArguments().get( elementIndex );
final SqmTypedNode<?> node = arguments.get( elementIndex );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
if ( expressible != null ) {
@ -50,7 +50,7 @@ public class ArrayAndElementArgumentTypeResolver implements FunctionArgumentType
}
}
else if ( ArrayHelper.contains( elementIndexes, argumentIndex ) ) {
final SqmTypedNode<?> node = function.getArguments().get( arrayIndex );
final SqmTypedNode<?> node = arguments.get( arrayIndex );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
if ( expressible != null ) {

View File

@ -4,29 +4,29 @@
*/
package org.hibernate.dialect.function.array;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.metamodel.model.domain.DomainType;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import org.hibernate.type.BasicPluralType;
import java.util.List;
/**
* A {@link FunctionArgumentTypeResolver} that resolves the argument types for the {@code array_contains} function.
*/
public class ArrayContainsArgumentTypeResolver implements FunctionArgumentTypeResolver {
public class ArrayContainsArgumentTypeResolver extends AbstractFunctionArgumentTypeResolver {
public static final FunctionArgumentTypeResolver INSTANCE = new ArrayContainsArgumentTypeResolver();
@Override
public MappingModelExpressible<?> resolveFunctionArgumentType(
SqmFunction<?> function,
int argumentIndex,
SqmToSqlAstConverter converter) {
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
if ( argumentIndex == 0 ) {
final SqmTypedNode<?> node = function.getArguments().get( 1 );
final SqmTypedNode<?> node = arguments.get( 1 );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
if ( expressible != null ) {
@ -43,7 +43,7 @@ public class ArrayContainsArgumentTypeResolver implements FunctionArgumentTypeRe
}
}
else if ( argumentIndex == 1 ) {
final SqmTypedNode<?> node = function.getArguments().get( 0 );
final SqmTypedNode<?> node = arguments.get( 0 );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
if ( expressible != null ) {

View File

@ -4,33 +4,33 @@
*/
package org.hibernate.dialect.function.array;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import java.util.List;
/**
* A {@link FunctionArgumentTypeResolver} that resolves the argument types for the {@code array_includes} function.
*/
public class ArrayIncludesArgumentTypeResolver implements FunctionArgumentTypeResolver {
public class ArrayIncludesArgumentTypeResolver extends AbstractFunctionArgumentTypeResolver {
public static final FunctionArgumentTypeResolver INSTANCE = new ArrayIncludesArgumentTypeResolver();
@Override
public MappingModelExpressible<?> resolveFunctionArgumentType(
SqmFunction<?> function,
int argumentIndex,
SqmToSqlAstConverter converter) {
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
if ( argumentIndex == 0 ) {
final SqmTypedNode<?> node = function.getArguments().get( 1 );
final SqmTypedNode<?> node = arguments.get( 1 );
if ( node instanceof SqmExpression<?> ) {
return converter.determineValueMapping( (SqmExpression<?>) node );
}
}
else if ( argumentIndex == 1 ) {
final SqmTypedNode<?> node = function.getArguments().get( 0 );
final SqmTypedNode<?> node = arguments.get( 0 );
if ( node instanceof SqmExpression<?> ) {
return converter.determineValueMapping( (SqmExpression<?>) node );
}

View File

@ -41,7 +41,6 @@ import org.hibernate.type.BasicType;
import org.hibernate.type.descriptor.jdbc.AggregateJdbcType;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.type.spi.TypeConfiguration;
/**
* H2 unnest function.
@ -193,8 +192,9 @@ public class H2UnnestFunction extends UnnestFunction {
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
TypeConfiguration typeConfiguration) {
SqmToSqlAstConverter converter) {
final Expression expression = (Expression) arguments.get( 0 );
final JdbcMappingContainer expressionType = expression.getExpressionType();
if ( expressionType == null ) {
@ -221,7 +221,7 @@ public class H2UnnestFunction extends UnnestFunction {
false,
false,
false,
typeConfiguration.getBasicTypeForJavaType( Long.class )
converter.getCreationContext().getTypeConfiguration().getBasicTypeForJavaType( Long.class )
) : null;
final BasicType<?> elementType = pluralType.getElementType();

View File

@ -36,7 +36,7 @@ public class UnnestFunction extends AbstractSqmSelfRenderingSetReturningFunction
protected UnnestFunction(SetReturningFunctionTypeResolver setReturningFunctionTypeResolver) {
super(
"unnest",
null,
ArrayArgumentValidator.DEFAULT_INSTANCE,
setReturningFunctionTypeResolver,
null
);

View File

@ -13,6 +13,7 @@ import java.time.Duration;
import java.time.Instant;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAmount;
import java.util.Collection;
import java.util.List;
import java.util.Map;
@ -4224,6 +4225,206 @@ public interface HibernateCriteriaBuilder extends CriteriaBuilder {
@Incubating
<E> JpaSetReturningFunction<E> unnestCollection(Expression<? extends Collection<E>> collection);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(E start, E stop);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(E start, Expression<E> stop);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, E stop);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(E start, Expression<E> stop, Expression<E> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, E stop, Expression<E> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, E step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(E start, Expression<E> stop, E step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, E stop, E step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(E start, E stop, Expression<E> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(E start, E stop, E step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, Expression<E> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, Expression<? extends TemporalAmount> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, Expression<? extends TemporalAmount> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, E stop, Expression<? extends TemporalAmount> step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, TemporalAmount step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, TemporalAmount step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, TemporalAmount step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, E stop, TemporalAmount step);
/**
* Creates a {@code generate_series} function expression to generate a set of values as rows.
*
* @since 7.0
* @see JpaSelectCriteria#from(JpaSetReturningFunction)
* @see JpaFrom#join(JpaSetReturningFunction)
*/
@Incubating
<E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, Expression<? extends TemporalAmount> step);
@Override
JpaPredicate and(List<Predicate> restrictions);

View File

@ -16,6 +16,7 @@ import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAmount;
import java.util.Collection;
import java.util.List;
import java.util.Map;
@ -3753,4 +3754,124 @@ public class HibernateCriteriaBuilderDelegate implements HibernateCriteriaBuilde
public <E> JpaSetReturningFunction<E> unnestCollection(Expression<? extends Collection<E>> collection) {
return criteriaBuilder.unnestCollection( collection );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(E start, E stop) {
return criteriaBuilder.generateSeries( start, stop );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(E start, Expression<E> stop) {
return criteriaBuilder.generateSeries( start, stop );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, E stop) {
return criteriaBuilder.generateSeries( start, stop );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop) {
return criteriaBuilder.generateSeries( start, stop );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(E start, Expression<E> stop, Expression<E> step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, E stop, Expression<E> step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, E step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(E start, Expression<E> stop, E step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, E stop, E step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(E start, E stop, Expression<E> step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(E start, E stop, E step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Number> JpaSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, Expression<E> step) {
return criteriaBuilder.generateSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, Expression<? extends TemporalAmount> step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, Expression<? extends TemporalAmount> step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, E stop, Expression<? extends TemporalAmount> step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, TemporalAmount step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, TemporalAmount step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, TemporalAmount step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(E start, E stop, TemporalAmount step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
@Incubating
@Override
public <E extends Temporal> JpaSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, Expression<? extends TemporalAmount> step) {
return criteriaBuilder.generateTimeSeries( start, stop, step );
}
}

View File

@ -12,6 +12,7 @@ import java.util.Map;
import org.hibernate.Incubating;
import org.hibernate.internal.util.collections.CollectionHelper;
import org.hibernate.metamodel.UnsupportedMappingException;
import org.hibernate.metamodel.mapping.CollectionPart;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.SqlTypedMapping;
import org.hibernate.metamodel.mapping.internal.SqlTypedMappingImpl;
@ -43,7 +44,7 @@ import org.checkerframework.checker.nullness.qual.Nullable;
@Incubating
public class AnonymousTupleType<T> implements TupleType<T>, DomainType<T>, ReturnableType<T>, SqmPathSource<T> {
private final ObjectArrayJavaType javaTypeDescriptor;
private final JavaType<T> javaTypeDescriptor;
private final @Nullable NavigablePath[] componentSourcePaths;
private final SqmExpressible<?>[] expressibles;
private final String[] componentNames;
@ -65,7 +66,8 @@ public class AnonymousTupleType<T> implements TupleType<T>, DomainType<T>, Retur
this.expressibles = expressibles;
this.componentSourcePaths = componentSourcePaths;
this.componentNames = new String[components.length];
this.javaTypeDescriptor = new ObjectArrayJavaType( getTypeDescriptors( components ) );
//noinspection unchecked
this.javaTypeDescriptor = (JavaType<T>) new ObjectArrayJavaType( getTypeDescriptors( components ) );
final Map<String, Integer> map = CollectionHelper.linkedMapOfSize( components.length );
for ( int i = 0; i < components.length; i++ ) {
final SqmSelectableNode<?> component = components[i];
@ -84,11 +86,23 @@ public class AnonymousTupleType<T> implements TupleType<T>, DomainType<T>, Retur
this.componentSourcePaths = new NavigablePath[componentNames.length];
this.expressibles = expressibles;
this.componentNames = componentNames;
this.javaTypeDescriptor = new ObjectArrayJavaType( getTypeDescriptors( expressibles ) );
final Map<String, Integer> map = CollectionHelper.linkedMapOfSize( expressibles.length );
int elementIndex = -1;
for ( int i = 0; i < componentNames.length; i++ ) {
if ( CollectionPart.Nature.ELEMENT.getName().equals( componentNames[i] ) ) {
elementIndex = i;
}
map.put( componentNames[i], i );
}
// The expressible java type of this tuple type must be equal to the element type if it exists
if ( elementIndex == -1 ) {
//noinspection unchecked
this.javaTypeDescriptor = (JavaType<T>) new ObjectArrayJavaType( getTypeDescriptors( expressibles ) );
}
else {
//noinspection unchecked
this.javaTypeDescriptor = (JavaType<T>) expressibles[elementIndex].getExpressibleJavaType();
}
this.componentIndexMap = map;
}

View File

@ -10,6 +10,8 @@ import java.sql.Date;
import java.sql.Time;
import java.sql.Timestamp;
import java.time.Instant;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAmount;
import java.util.Collection;
import java.util.List;
import java.util.Map;
@ -811,6 +813,66 @@ public interface NodeBuilder extends HibernateCriteriaBuilder, BindingContext {
@Override
<E> SqmSetReturningFunction<E> unnestCollection(Expression<? extends Collection<E>> collection);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, Expression<? extends TemporalAmount> step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, E stop, TemporalAmount step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, TemporalAmount step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, TemporalAmount step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, TemporalAmount step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, E stop, Expression<? extends TemporalAmount> step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, Expression<? extends TemporalAmount> step);
@Override
<E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, Expression<? extends TemporalAmount> step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, Expression<E> step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(E start, E stop, E step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(E start, E stop, Expression<E> step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, E stop, E step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(E start, Expression<E> stop, E step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, E step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, E stop, Expression<E> step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(E start, Expression<E> stop, Expression<E> step);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, E stop);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(E start, Expression<E> stop);
@Override
<E extends Number> SqmSetReturningFunction<E> generateSeries(E start, E stop);
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Covariant overrides

View File

@ -6,6 +6,7 @@ package org.hibernate.query.sqm.function;
import java.util.List;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.query.ReturnableType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.produce.function.ArgumentsValidator;
@ -33,22 +34,22 @@ public abstract class AbstractSqmFunctionDescriptor implements SqmFunctionDescri
public AbstractSqmFunctionDescriptor(
String name,
ArgumentsValidator argumentsValidator) {
@Nullable ArgumentsValidator argumentsValidator) {
this( name, argumentsValidator, null, null );
}
public AbstractSqmFunctionDescriptor(
String name,
ArgumentsValidator argumentsValidator,
FunctionArgumentTypeResolver argumentTypeResolver) {
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionArgumentTypeResolver argumentTypeResolver) {
this( name, argumentsValidator, null, argumentTypeResolver );
}
public AbstractSqmFunctionDescriptor(
String name,
ArgumentsValidator argumentsValidator,
FunctionReturnTypeResolver returnTypeResolver,
FunctionArgumentTypeResolver argumentTypeResolver) {
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionReturnTypeResolver returnTypeResolver,
@Nullable FunctionArgumentTypeResolver argumentTypeResolver) {
this.name = name;
this.argumentsValidator = argumentsValidator == null
? StandardArgumentsValidators.NONE

View File

@ -4,6 +4,7 @@
*/
package org.hibernate.query.sqm.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.query.ReturnableType;
import org.hibernate.query.spi.QueryEngine;
import org.hibernate.query.sqm.produce.function.ArgumentsValidator;
@ -28,9 +29,9 @@ public abstract class AbstractSqmSelfRenderingFunctionDescriptor
public AbstractSqmSelfRenderingFunctionDescriptor(
String name,
ArgumentsValidator argumentsValidator,
FunctionReturnTypeResolver returnTypeResolver,
FunctionArgumentTypeResolver argumentTypeResolver) {
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionReturnTypeResolver returnTypeResolver,
@Nullable FunctionArgumentTypeResolver argumentTypeResolver) {
super( name, argumentsValidator, returnTypeResolver, argumentTypeResolver );
this.functionKind = FunctionKind.NORMAL;
}
@ -38,9 +39,9 @@ public abstract class AbstractSqmSelfRenderingFunctionDescriptor
public AbstractSqmSelfRenderingFunctionDescriptor(
String name,
FunctionKind functionKind,
ArgumentsValidator argumentsValidator,
FunctionReturnTypeResolver returnTypeResolver,
FunctionArgumentTypeResolver argumentTypeResolver) {
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionReturnTypeResolver returnTypeResolver,
@Nullable FunctionArgumentTypeResolver argumentTypeResolver) {
super( name, argumentsValidator, returnTypeResolver, argumentTypeResolver );
this.functionKind = functionKind;
}

View File

@ -4,6 +4,7 @@
*/
package org.hibernate.query.sqm.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.query.ReturnableType;
import org.hibernate.query.sqm.produce.function.ArgumentsValidator;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
@ -41,8 +42,8 @@ public class NamedSqmFunctionDescriptor
public NamedSqmFunctionDescriptor(
String functionName,
boolean useParenthesesWhenNoArgs,
ArgumentsValidator argumentsValidator,
FunctionReturnTypeResolver returnTypeResolver) {
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionReturnTypeResolver returnTypeResolver) {
this(
functionName,
useParenthesesWhenNoArgs,
@ -59,9 +60,9 @@ public class NamedSqmFunctionDescriptor
public NamedSqmFunctionDescriptor(
String functionName,
boolean useParenthesesWhenNoArgs,
ArgumentsValidator argumentsValidator,
FunctionReturnTypeResolver returnTypeResolver,
FunctionArgumentTypeResolver argumentTypeResolver) {
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionReturnTypeResolver returnTypeResolver,
@Nullable FunctionArgumentTypeResolver argumentTypeResolver) {
this(
functionName,
useParenthesesWhenNoArgs,
@ -78,9 +79,9 @@ public class NamedSqmFunctionDescriptor
public NamedSqmFunctionDescriptor(
String functionName,
boolean useParenthesesWhenNoArgs,
ArgumentsValidator argumentsValidator,
FunctionReturnTypeResolver returnTypeResolver,
FunctionArgumentTypeResolver argumentTypeResolver,
@Nullable ArgumentsValidator argumentsValidator,
@Nullable FunctionReturnTypeResolver returnTypeResolver,
@Nullable FunctionArgumentTypeResolver argumentTypeResolver,
String name,
FunctionKind functionKind,
String argumentListSignature,

View File

@ -238,7 +238,7 @@ public class SelfRenderingSqmFunction<T> extends SqmFunction<T> {
@Override
public MappingModelExpressible<?> get() {
return argumentTypeResolver.resolveFunctionArgumentType( function, argumentIndex, converter );
return argumentTypeResolver.resolveFunctionArgumentType( function.getArguments(), argumentIndex, converter );
}
}

View File

@ -6,15 +6,18 @@ package org.hibernate.query.sqm.function;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;
import org.hibernate.Incubating;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.sqm.NodeBuilder;
import org.hibernate.query.sqm.produce.function.ArgumentsValidator;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.produce.function.SetReturningFunctionTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmCopyContext;
@ -98,6 +101,14 @@ public class SelfRenderingSqmSetReturningFunction<T> extends SqmSetReturningFunc
if ( sqmArguments.isEmpty() ) {
return emptyList();
}
final FunctionArgumentTypeResolver argumentTypeResolver;
if ( getFunctionDescriptor() instanceof AbstractSqmSetReturningFunctionDescriptor ) {
argumentTypeResolver = ( (AbstractSqmSetReturningFunctionDescriptor) getFunctionDescriptor() ).getArgumentTypeResolver();
}
else {
argumentTypeResolver = null;
}
if ( argumentTypeResolver == null ) {
final ArrayList<SqlAstNode> sqlAstArguments = new ArrayList<>( sqmArguments.size() );
for ( int i = 0; i < sqmArguments.size(); i++ ) {
sqlAstArguments.add(
@ -106,6 +117,44 @@ public class SelfRenderingSqmSetReturningFunction<T> extends SqmSetReturningFunc
}
return sqlAstArguments;
}
else {
final FunctionArgumentTypeResolverTypeAccess typeAccess = new FunctionArgumentTypeResolverTypeAccess(
walker,
this,
argumentTypeResolver
);
final ArrayList<SqlAstNode> sqlAstArguments = new ArrayList<>( sqmArguments.size() );
for ( int i = 0; i < sqmArguments.size(); i++ ) {
typeAccess.argumentIndex = i;
sqlAstArguments.add(
(SqlAstNode) walker.visitWithInferredType( sqmArguments.get( i ), typeAccess )
);
}
return sqlAstArguments;
}
}
private static class FunctionArgumentTypeResolverTypeAccess implements Supplier<MappingModelExpressible<?>> {
private final SqmToSqlAstConverter converter;
private final SqmSetReturningFunction<?> function;
private final FunctionArgumentTypeResolver argumentTypeResolver;
private int argumentIndex;
public FunctionArgumentTypeResolverTypeAccess(
SqmToSqlAstConverter converter,
SqmSetReturningFunction<?> function,
FunctionArgumentTypeResolver argumentTypeResolver) {
this.converter = converter;
this.function = function;
this.argumentTypeResolver = argumentTypeResolver;
}
@Override
public MappingModelExpressible<?> get() {
return argumentTypeResolver.resolveFunctionArgumentType( function.getArguments(), argumentIndex, converter );
}
}
@Override
public TableGroup convertToSqlAst(
@ -123,8 +172,9 @@ public class SelfRenderingSqmSetReturningFunction<T> extends SqmSetReturningFunc
final SelectableMapping[] selectableMappings = getSetReturningTypeResolver().resolveFunctionReturnType(
arguments,
identifierVariable,
lateral,
withOrdinality,
walker.getCreationContext().getTypeConfiguration()
walker
);
final AnonymousTupleTableGroupProducer tableGroupProducer = getType().resolveTableGroupProducer(
identifierVariable,

View File

@ -19,6 +19,7 @@ import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAccessor;
import java.time.temporal.TemporalAmount;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@ -5842,4 +5843,113 @@ public class SqmCriteriaNodeBuilder implements NodeBuilder, Serializable {
queryEngine
);
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, Expression<? extends TemporalAmount> step) {
return getSetReturningFunctionDescriptor( "generate_series" ).generateSqmExpression(
asList( (SqmTypedNode<?>) start, (SqmTypedNode<?>) stop, (SqmTypedNode<?>) step ),
queryEngine
);
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, E stop, TemporalAmount step) {
return generateTimeSeries( value( start ), value( stop ), value( step ) );
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, TemporalAmount step) {
return generateTimeSeries( value( start ), stop, value( step ) );
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, TemporalAmount step) {
return generateTimeSeries( start, value( stop ), value( step ) );
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, Expression<E> stop, TemporalAmount step) {
return generateTimeSeries( start, stop, value( step ) );
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, E stop, Expression<? extends TemporalAmount> step) {
return generateTimeSeries( value( start ), value( stop ), step );
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(Expression<E> start, E stop, Expression<? extends TemporalAmount> step) {
return generateTimeSeries( start, value( stop ), step );
}
@Override
public <E extends Temporal> SqmSetReturningFunction<E> generateTimeSeries(E start, Expression<E> stop, Expression<? extends TemporalAmount> step) {
return generateTimeSeries( value( start ), stop, step );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, Expression<E> step) {
return getSetReturningFunctionDescriptor( "generate_series" ).generateSqmExpression(
asList( (SqmTypedNode<?>) start, (SqmTypedNode<?>) stop, (SqmTypedNode<?>) step ),
queryEngine
);
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(E start, E stop, E step) {
return generateSeries( value( start ), value( stop ), value( step ) );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(E start, E stop, Expression<E> step) {
return generateSeries( value( start ), value( stop ), step );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, E stop, E step) {
return generateSeries( start, value( stop ), value( step ) );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(E start, Expression<E> stop, E step) {
return generateSeries( value( start ), stop, value( step ) );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop, E step) {
return generateSeries( start, stop, value( step ) );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, E stop, Expression<E> step) {
return generateSeries( start, value( stop ), step );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(E start, Expression<E> stop, Expression<E> step) {
return generateSeries( value( start ), stop, step );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, Expression<E> stop) {
return getSetReturningFunctionDescriptor( "generate_series" ).generateSqmExpression(
asList( (SqmTypedNode<?>) start, (SqmTypedNode<?>) stop ),
queryEngine
);
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(Expression<E> start, E stop) {
return generateSeries( start, value( stop ) );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(E start, Expression<E> stop) {
return generateSeries( value( start ), stop );
}
@Override
public <E extends Number> SqmSetReturningFunction<E> generateSeries(E start, E stop) {
return generateSeries( value( start ), value( stop ) );
}
}

View File

@ -4,9 +4,17 @@
*/
package org.hibernate.query.sqm.produce.function;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.function.NamedSqmFunctionDescriptor;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmCopyContext;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import org.hibernate.sql.ast.tree.expression.Expression;
import java.util.List;
/**
* Pluggable strategy for resolving a function argument type for a specific call.
@ -22,9 +30,48 @@ public interface FunctionArgumentTypeResolver {
* the implied type would be defined by the type of `something`.
*
* @return The resolved type.
* @deprecated Use {@link #resolveFunctionArgumentType(List, int, SqmToSqlAstConverter)} instead
*/
MappingModelExpressible<?> resolveFunctionArgumentType(
@Deprecated(forRemoval = true)
@Nullable MappingModelExpressible<?> resolveFunctionArgumentType(
SqmFunction<?> function,
int argumentIndex,
SqmToSqlAstConverter converter);
/**
* Resolve the argument type for a function given its context-implied return type.
* <p>
* The <em>context-implied</em> type is the type implied by where the function
* occurs in the query. E.g., for an equality predicate (`something = some_function`)
* the implied type would be defined by the type of `something`.
*
* @return The resolved type.
* @since 7.0
*/
default @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(
List<? extends SqmTypedNode<?>> arguments,
int argumentIndex,
SqmToSqlAstConverter converter) {
return resolveFunctionArgumentType(
new SqmFunction<>(
"",
new NamedSqmFunctionDescriptor( "", false, null, null ),
null,
arguments,
converter.getCreationContext().getSessionFactory().getNodeBuilder()
) {
@Override
public Expression convertToSqlAst(SqmToSqlAstConverter walker) {
throw new UnsupportedOperationException();
}
@Override
public SqmExpression<Object> copy(SqmCopyContext context) {
throw new UnsupportedOperationException();
}
},
argumentIndex,
converter
);
}
}

View File

@ -9,6 +9,7 @@ import org.hibernate.metamodel.mapping.SelectableMapping;
import org.hibernate.metamodel.mapping.SqlExpressible;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.sqm.produce.function.internal.SetReturningFunctionTypeResolverBuilder;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.type.BasicType;
@ -40,8 +41,9 @@ public interface SetReturningFunctionTypeResolver {
SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
TypeConfiguration typeConfiguration);
SqmToSqlAstConverter converter);
/**
* Creates a builder for a type resolver.

View File

@ -10,7 +10,10 @@ import java.sql.Time;
import java.sql.Timestamp;
import java.util.List;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.type.spi.TypeConfiguration;
@ -25,30 +28,39 @@ public final class StandardFunctionArgumentTypeResolvers {
private StandardFunctionArgumentTypeResolvers() {
}
public static final FunctionArgumentTypeResolver NULL = (function, argumentIndex, converter) -> {
public static final FunctionArgumentTypeResolver NULL = new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
return null;
}
};
public static final FunctionArgumentTypeResolver IMPLIED_RESULT_TYPE = (function, argumentIndex, converter) -> {
public static final FunctionArgumentTypeResolver IMPLIED_RESULT_TYPE = new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
return converter.resolveFunctionImpliedReturnType();
}
};
public static final FunctionArgumentTypeResolver ARGUMENT_OR_IMPLIED_RESULT_TYPE = (function, argumentIndex, converter) -> {
final List<? extends SqmTypedNode<?>> arguments = function.getArguments();
public static final FunctionArgumentTypeResolver ARGUMENT_OR_IMPLIED_RESULT_TYPE = new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
final int argumentsSize = arguments.size();
for ( int i = 0 ; i < argumentIndex; i++ ) {
for ( int i = 0; i < argumentIndex; i++ ) {
final SqmTypedNode<?> node = arguments.get( i );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
final MappingModelExpressible<?> expressible = converter.determineValueMapping(
(SqmExpression<?>) node );
if ( expressible != null ) {
return expressible;
}
}
}
for ( int i = argumentIndex + 1 ; i < argumentsSize; i++ ) {
for ( int i = argumentIndex + 1; i < argumentsSize; i++ ) {
final SqmTypedNode<?> node = arguments.get( i );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
final MappingModelExpressible<?> expressible = converter.determineValueMapping(
(SqmExpression<?>) node );
if ( expressible != null ) {
return expressible;
}
@ -56,13 +68,19 @@ public final class StandardFunctionArgumentTypeResolvers {
}
return converter.resolveFunctionImpliedReturnType();
}
};
public static FunctionArgumentTypeResolver invariant(
TypeConfiguration typeConfiguration,
FunctionParameterType type) {
final MappingModelExpressible<?> expressible = getMappingModelExpressible( typeConfiguration, type );
return (function, argumentIndex, converter) -> expressible;
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
return expressible;
}
};
}
public static FunctionArgumentTypeResolver invariant(
@ -73,32 +91,46 @@ public final class StandardFunctionArgumentTypeResolvers {
expressibles[i] = getMappingModelExpressible( typeConfiguration, types[i] );
}
return (function, argumentIndex, converter) -> expressibles[argumentIndex];
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
return expressibles[argumentIndex];
}
};
}
public static FunctionArgumentTypeResolver invariant(FunctionParameterType... types) {
return (function, argumentIndex, converter) -> getMappingModelExpressible(
function.nodeBuilder().getTypeConfiguration(),
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
return getMappingModelExpressible(
converter.getCreationContext().getTypeConfiguration(),
types[argumentIndex]
);
}
};
}
public static FunctionArgumentTypeResolver impliedOrInvariant(
TypeConfiguration typeConfiguration,
FunctionParameterType type) {
final MappingModelExpressible<?> expressible = getMappingModelExpressible( typeConfiguration, type );
return (function, argumentIndex, converter) -> {
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
final MappingModelExpressible<?> mappingModelExpressible = converter.resolveFunctionImpliedReturnType();
if ( mappingModelExpressible != null ) {
return mappingModelExpressible;
}
return expressible;
}
};
}
public static FunctionArgumentTypeResolver argumentsOrImplied(int... indices) {
return (function, argumentIndex, converter) -> {
final List<? extends SqmTypedNode<?>> arguments = function.getArguments();
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
final int argumentsSize = arguments.size();
for ( int index : indices ) {
if ( index >= argumentIndex || index >= argumentsSize ) {
@ -106,7 +138,8 @@ public final class StandardFunctionArgumentTypeResolvers {
}
final SqmTypedNode<?> node = arguments.get( index );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
final MappingModelExpressible<?> expressible = converter.determineValueMapping(
(SqmExpression<?>) node );
if ( expressible != null ) {
return expressible;
}
@ -118,7 +151,8 @@ public final class StandardFunctionArgumentTypeResolvers {
}
final SqmTypedNode<?> node = arguments.get( index );
if ( node instanceof SqmExpression<?> ) {
final MappingModelExpressible<?> expressible = converter.determineValueMapping( (SqmExpression<?>) node );
final MappingModelExpressible<?> expressible = converter.determineValueMapping(
(SqmExpression<?>) node );
if ( expressible != null ) {
return expressible;
}
@ -126,14 +160,17 @@ public final class StandardFunctionArgumentTypeResolvers {
}
return converter.resolveFunctionImpliedReturnType();
}
};
}
public static FunctionArgumentTypeResolver composite(FunctionArgumentTypeResolver... resolvers) {
return (function, argumentIndex, converter) -> {
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
for ( FunctionArgumentTypeResolver resolver : resolvers ) {
final MappingModelExpressible<?> result = resolver.resolveFunctionArgumentType(
function,
arguments,
argumentIndex,
converter
);
@ -143,12 +180,16 @@ public final class StandardFunctionArgumentTypeResolvers {
}
return null;
}
};
}
public static FunctionArgumentTypeResolver byArgument(FunctionArgumentTypeResolver... resolvers) {
return (function, argumentIndex, converter) -> {
return resolvers[argumentIndex].resolveFunctionArgumentType( function, argumentIndex, converter );
return new AbstractFunctionArgumentTypeResolver() {
@Override
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
return resolvers[argumentIndex].resolveFunctionArgumentType( arguments, argumentIndex, converter );
}
};
}

View File

@ -0,0 +1,25 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.query.sqm.produce.function.internal;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import java.util.List;
public abstract class AbstractFunctionArgumentTypeResolver implements FunctionArgumentTypeResolver {
@Override
@SuppressWarnings("removal")
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(SqmFunction<?> function, int argumentIndex, SqmToSqlAstConverter converter) {
return resolveFunctionArgumentType( function.getArguments(), argumentIndex, converter );
}
@Override
public abstract @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter);
}

View File

@ -13,6 +13,7 @@ import org.hibernate.metamodel.mapping.internal.SelectableMappingImpl;
import org.hibernate.query.derived.AnonymousTupleType;
import org.hibernate.query.sqm.SqmExpressible;
import org.hibernate.query.sqm.produce.function.SetReturningFunctionTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.sql.ast.tree.SqlAstNode;
import org.hibernate.sql.ast.tree.expression.Expression;
@ -116,12 +117,13 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
public SelectableMapping[] resolveFunctionReturnType(
List<? extends SqlAstNode> arguments,
String tableIdentifierVariable,
boolean lateral,
boolean withOrdinality,
TypeConfiguration typeConfiguration) {
SqmToSqlAstConverter converter) {
final SelectableMapping[] selectableMappings = new SelectableMapping[typeResolvers.length + (withOrdinality ? 1 : 0)];
int i = 0;
for ( TypeResolver typeResolver : typeResolvers ) {
final JdbcMapping jdbcMapping = typeResolver.resolveFunctionReturnType( arguments, typeConfiguration );
final JdbcMapping jdbcMapping = typeResolver.resolveFunctionReturnType( arguments, converter );
selectableMappings[i] = new SelectableMappingImpl(
"",
typeResolver.selectionExpression(),
@ -146,7 +148,7 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
if ( withOrdinality ) {
selectableMappings[i] = new SelectableMappingImpl(
"",
determineIndexSelectionExpression( selectableMappings, tableIdentifierVariable, typeConfiguration ),
determineIndexSelectionExpression( selectableMappings, tableIdentifierVariable, converter ),
new SelectablePath( CollectionPart.Nature.INDEX.getName() ),
null,
null,
@ -161,14 +163,15 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
false,
false,
false,
typeConfiguration.getBasicTypeForJavaType( Long.class )
converter.getCreationContext().getTypeConfiguration().getBasicTypeForJavaType( Long.class )
);
}
return selectableMappings;
}
private String determineIndexSelectionExpression(SelectableMapping[] selectableMappings, String tableIdentifierVariable, TypeConfiguration typeConfiguration) {
final String defaultOrdinalityColumnName = typeConfiguration.getSessionFactory().getJdbcServices()
private String determineIndexSelectionExpression(SelectableMapping[] selectableMappings, String tableIdentifierVariable, SqmToSqlAstConverter walker) {
final String defaultOrdinalityColumnName = walker.getCreationContext().getSessionFactory()
.getJdbcServices()
.getDialect()
.getDefaultOrdinalityColumnName();
String name = defaultOrdinalityColumnName == null ? "i" : defaultOrdinalityColumnName;
@ -195,7 +198,7 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
SqmExpressible<?> resolveTupleType(List<? extends SqmTypedNode<?>> arguments, TypeConfiguration typeConfiguration);
JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, TypeConfiguration typeConfiguration);
JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, SqmToSqlAstConverter walker);
}
private record BasicTypeReferenceTypeResolver(
@ -210,8 +213,8 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
}
@Override
public JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, TypeConfiguration typeConfiguration) {
return typeConfiguration.getBasicTypeRegistry().resolve( basicTypeReference );
public JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, SqmToSqlAstConverter walker) {
return walker.getCreationContext().getTypeConfiguration().getBasicTypeRegistry().resolve( basicTypeReference );
}
}
@ -227,7 +230,7 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
}
@Override
public JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, TypeConfiguration typeConfiguration) {
public JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, SqmToSqlAstConverter walker) {
return basicType;
}
}
@ -244,7 +247,7 @@ public class SetReturningFunctionTypeResolverBuilder implements SetReturningFunc
}
@Override
public JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, TypeConfiguration typeConfiguration) {
public JdbcMapping resolveFunctionReturnType(List<? extends SqlAstNode> arguments, SqmToSqlAstConverter walker) {
return ((Expression) arguments.get( argPosition )).getExpressionType().getSingleJdbcMapping();
}
}

View File

@ -283,8 +283,11 @@ public abstract class BaseSemanticQueryWalker implements SemanticQueryWalker<Obj
}
protected void consumeFromClauseRoot(SqmRoot<?> sqmRoot) {
if ( sqmRoot instanceof SqmDerivedRoot<?> ) {
( (SqmDerivedRoot<?>) sqmRoot ).getQueryPart().accept( this );
if ( sqmRoot instanceof SqmDerivedRoot<?> derivedRoot ) {
derivedRoot.getQueryPart().accept( this );
}
else if ( sqmRoot instanceof SqmFunctionRoot<?> functionRoot ) {
functionRoot.getFunction().accept( this );
}
consumeJoins( sqmRoot );
}
@ -416,7 +419,7 @@ public abstract class BaseSemanticQueryWalker implements SemanticQueryWalker<Obj
}
@Override
public Object visitRootFunction(SqmFunctionRoot<?>sqmRoot) {
public Object visitRootFunction(SqmFunctionRoot<?> sqmRoot) {
return sqmRoot;
}

View File

@ -7085,7 +7085,10 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
);
}
else {
BasicValuedMapping durationType = (BasicValuedMapping) toDuration.getNodeType();
final MappingModelExpressible<?> inferredValueMapping = getInferredValueMapping();
final BasicValuedMapping durationType = inferredValueMapping != null
? (BasicValuedMapping) inferredValueMapping
: (BasicValuedMapping) toDuration.getNodeType();
Duration duration;
if ( scaledMagnitude.getExpressionType().getSingleJdbcMapping().getJdbcType().isInterval() ) {
duration = new Duration( extractEpoch( scaledMagnitude ), SECOND, durationType );

View File

@ -53,7 +53,7 @@ public interface SqmToSqlAstConverter extends SemanticQueryWalker<Object>, SqlAs
* Returns the function return type implied from the context within which it is used.
* If there is no current function being processed or no context implied type, the return is <code>null</code>.
*/
MappingModelExpressible<?> resolveFunctionImpliedReturnType();
@Nullable MappingModelExpressible<?> resolveFunctionImpliedReturnType();
MappingModelExpressible<?> determineValueMapping(SqmExpression<?> sqmExpression);

View File

@ -76,7 +76,9 @@ public class SqmFunctionRoot<E> extends SqmRoot<E> implements JpaFunctionRoot<E>
@Override
public SqmPath<Long> index() {
return get( CollectionPart.Nature.INDEX.getName() );
//noinspection unchecked
final SqmPathSource<Long> indexPathSource = (SqmPathSource<Long>) function.getType().getSubPathSource( CollectionPart.Nature.INDEX.getName() );
return resolvePath( indexPathSource.getPathName(), indexPathSource );
}
@Override

View File

@ -129,7 +129,9 @@ public class SqmFunctionJoin<E> extends AbstractSqmJoin<Object, E> implements Jp
@Override
public SqmPath<Long> index() {
return get( CollectionPart.Nature.INDEX.getName() );
//noinspection unchecked
final SqmPathSource<Long> indexPathSource = (SqmPathSource<Long>) function.getType().getSubPathSource( CollectionPart.Nature.INDEX.getName() );
return resolvePath( indexPathSource.getPathName(), indexPathSource );
}
@Override

View File

@ -6,6 +6,7 @@ package org.hibernate.sql.ast.spi;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.time.Period;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.Collection;
@ -59,6 +60,7 @@ import org.hibernate.persister.internal.SqlFragmentPredicate;
import org.hibernate.query.IllegalQueryOperationException;
import org.hibernate.query.ReturnableType;
import org.hibernate.query.SortDirection;
import org.hibernate.query.common.TemporalUnit;
import org.hibernate.query.derived.AnonymousTupleTableGroupProducer;
import org.hibernate.query.internal.NullPrecedenceHelper;
import org.hibernate.query.spi.Limit;
@ -230,7 +232,10 @@ import jakarta.persistence.criteria.Nulls;
import static org.hibernate.persister.entity.DiscriminatorHelper.jdbcLiteral;
import static org.hibernate.query.sqm.BinaryArithmeticOperator.DIVIDE_PORTABLE;
import static org.hibernate.query.common.TemporalUnit.DAY;
import static org.hibernate.query.common.TemporalUnit.MONTH;
import static org.hibernate.query.common.TemporalUnit.NANOSECOND;
import static org.hibernate.query.common.TemporalUnit.SECOND;
import static org.hibernate.sql.ast.SqlTreePrinter.logSqlAst;
import static org.hibernate.sql.results.graph.DomainResultGraphPrinter.logDomainResultGraph;
@ -7299,8 +7304,16 @@ public abstract class AbstractSqlAstTranslator<T extends JdbcOperation> implemen
@Override
public void visitDuration(Duration duration) {
if ( duration.getExpressionType().getJdbcMapping().getJdbcType().isInterval() ) {
if ( duration.getMagnitude() instanceof Literal literal ) {
renderIntervalLiteral( literal, duration.getUnit() );
}
else {
renderInterval( duration );
}
}
else {
duration.getMagnitude().accept( this );
if ( !duration.getExpressionType().getJdbcMapping().getJdbcType().isInterval() ) {
// Convert to NANOSECOND because DurationJavaType requires values in that unit
appendSql(
duration.getUnit().conversionFactor( NANOSECOND, dialect )
@ -7308,6 +7321,43 @@ public abstract class AbstractSqlAstTranslator<T extends JdbcOperation> implemen
}
}
protected void renderInterval(Duration duration) {
final TemporalUnit unit = duration.getUnit();
appendSql( "(interval '1' " );
final TemporalUnit targetResolution = switch ( unit ) {
case NANOSECOND -> SECOND;
case SECOND, MINUTE, HOUR, DAY, MONTH, YEAR -> unit;
case WEEK -> DAY;
case QUARTER -> MONTH;
case DATE, TIME, EPOCH, DAY_OF_MONTH, DAY_OF_WEEK, DAY_OF_YEAR, WEEK_OF_MONTH, WEEK_OF_YEAR, OFFSET,
TIMEZONE_HOUR, TIMEZONE_MINUTE, NATIVE ->
throw new IllegalArgumentException( "Invalid duration unit: " + unit );
};
appendSql( targetResolution.toString() );
appendSql( '*' );
duration.getMagnitude().accept( this );
appendSql( duration.getUnit().conversionFactor( targetResolution, dialect ) );
appendSql( ')' );
}
protected void renderIntervalLiteral(Literal literal, TemporalUnit unit) {
final Number value = (Number) literal.getLiteralValue();
dialect.appendIntervalLiteral( this, switch ( unit ) {
case NANOSECOND -> java.time.Duration.ofNanos( value.longValue() );
case SECOND -> java.time.Duration.ofSeconds( value.longValue() );
case MINUTE -> java.time.Duration.ofMinutes( value.longValue() );
case HOUR -> java.time.Duration.ofHours( value.longValue() );
case DAY -> Period.ofDays( value.intValue() );
case WEEK -> Period.ofWeeks( value.intValue() );
case MONTH -> Period.ofMonths( value.intValue() );
case YEAR -> Period.ofYears( value.intValue() );
case QUARTER -> Period.ofMonths( value.intValue() * 3 );
case DATE, TIME, EPOCH, DAY_OF_MONTH, DAY_OF_WEEK, DAY_OF_YEAR, WEEK_OF_MONTH, WEEK_OF_YEAR, OFFSET,
TIMEZONE_HOUR, TIMEZONE_MINUTE, NATIVE ->
throw new IllegalArgumentException( "Invalid duration unit: " + unit );
} );
}
@Override
public void visitConversion(Conversion conversion) {
final Duration duration = conversion.getDuration();

View File

@ -4,6 +4,7 @@
*/
package org.hibernate.sql.ast.tree.expression;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.metamodel.mapping.JdbcMappingContainer;
import org.hibernate.sql.ast.SqlAstTranslator;
@ -16,9 +17,15 @@ import org.hibernate.sql.ast.spi.SqlAppender;
*/
public class SelfRenderingSqlFragmentExpression implements SelfRenderingExpression {
private final String expression;
private final @Nullable JdbcMappingContainer expressionType;
public SelfRenderingSqlFragmentExpression(String expression) {
this( expression, null );
}
public SelfRenderingSqlFragmentExpression(String expression, @Nullable JdbcMappingContainer expressionType) {
this.expression = expression;
this.expressionType = expressionType;
}
public String getExpression() {
@ -27,7 +34,7 @@ public class SelfRenderingSqlFragmentExpression implements SelfRenderingExpressi
@Override
public JdbcMappingContainer getExpressionType() {
return null;
return expressionType;
}
@Override

View File

@ -0,0 +1,189 @@
/*
* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright Red Hat Inc. and Hibernate Authors
*/
package org.hibernate.orm.test.function.srf;
import jakarta.persistence.Tuple;
import org.hibernate.dialect.SybaseASEDialect;
import org.hibernate.query.criteria.JpaCriteriaQuery;
import org.hibernate.query.criteria.JpaFunctionRoot;
import org.hibernate.query.sqm.NodeBuilder;
import org.hibernate.testing.orm.domain.StandardDomainModel;
import org.hibernate.testing.orm.domain.library.Book;
import org.hibernate.testing.orm.junit.DialectFeatureChecks;
import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.RequiresDialectFeature;
import org.hibernate.testing.orm.junit.SessionFactory;
import org.hibernate.testing.orm.junit.SessionFactoryScope;
import org.hibernate.testing.orm.junit.SkipForDialect;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import java.time.LocalDate;
import java.time.Month;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* @author Christian Beikov
*/
@DomainModel(standardModels = StandardDomainModel.LIBRARY)
@SessionFactory
@RequiresDialectFeature(feature = DialectFeatureChecks.SupportsGenerateSeries.class)
public class GenerateSeriesTest {
@BeforeAll
public void setup(SessionFactoryScope scope) {
scope.inTransaction( session -> {
session.persist( new Book(2, "Test") );
} );
}
@AfterAll
public void cleanup(SessionFactoryScope scope) {
scope.inTransaction( session -> {
session.createMutationQuery( "delete Book" ).executeUpdate();
} );
}
@Test
public void testGenerateSeries(SessionFactoryScope scope) {
scope.inSession( em -> {
//tag::hql-set-returning-function-generate-series-example[]
List<Integer> resultList = em.createQuery( "select e from generate_series(1, 2) e order by e", Integer.class )
.getResultList();
//end::hql-set-returning-function-generate-series-example[]
assertEquals( 2, resultList.size() );
assertEquals( 1, resultList.get( 0 ) );
assertEquals( 2, resultList.get( 1 ) );
} );
}
@Test
public void testNodeBuilderGenerateSeries(SessionFactoryScope scope) {
scope.inSession( em -> {
final NodeBuilder cb = (NodeBuilder) em.getCriteriaBuilder();
final JpaCriteriaQuery<Integer> cq = cb.createQuery(Integer.class);
final JpaFunctionRoot<Integer> root = cq.from( cb.generateSeries( 1, 2 ) );
cq.select( root );
cq.orderBy( cb.asc( root ) );
List<Integer> resultList = em.createQuery( cq ).getResultList();
assertEquals( 2, resultList.size() );
assertEquals( 1, resultList.get( 0 ) );
assertEquals( 2, resultList.get( 1 ) );
} );
}
@Test
public void testGenerateSeriesOrdinality(SessionFactoryScope scope) {
scope.inSession( em -> {
//tag::hql-set-returning-function-generate-series-ordinality-example[]
List<Tuple> resultList = em.createQuery(
"select index(e), e from generate_series(2, 3, 1) e order by index(e)",
Tuple.class
)
.getResultList();
//end::hql-set-returning-function-generate-series-ordinality-example[]
assertEquals( 2, resultList.size() );
assertEquals( 1L, resultList.get( 0 ).get( 0 ) );
assertEquals( 2, resultList.get( 0 ).get( 1 ) );
assertEquals( 2L, resultList.get( 1 ).get( 0 ) );
assertEquals( 3, resultList.get( 1 ).get( 1 ) );
} );
}
@Test
public void testNodeBuilderGenerateSeriesOrdinality(SessionFactoryScope scope) {
scope.inSession( em -> {
final NodeBuilder cb = (NodeBuilder) em.getCriteriaBuilder();
final JpaCriteriaQuery<Tuple> cq = cb.createTupleQuery();
final JpaFunctionRoot<Integer> root = cq.from( cb.generateSeries( 2, 3, 1 ) );
cq.multiselect( root.index(), root );
cq.orderBy( cb.asc( root.index() ) );
List<Tuple> resultList = em.createQuery( cq ).getResultList();
assertEquals( 2, resultList.size() );
assertEquals( 1L, resultList.get( 0 ).get( 0 ) );
assertEquals( 2, resultList.get( 0 ).get( 1 ) );
assertEquals( 2L, resultList.get( 1 ).get( 0 ) );
assertEquals( 3, resultList.get( 1 ).get( 1 ) );
} );
}
@Test
public void testGenerateTimeSeries(SessionFactoryScope scope) {
scope.inSession( em -> {
//tag::hql-set-returning-function-generate-series-temporal-example[]
List<LocalDate> resultList = em.createQuery( "select e from generate_series(local date 2020-01-31, local date 2020-01-01, -1 day) e order by e", LocalDate.class )
.getResultList();
//end::hql-set-returning-function-generate-series-temporal-example[]
assertEquals( 31, resultList.size() );
for ( int i = 0; i < resultList.size(); i++ ) {
assertEquals( LocalDate.of( 2020, Month.JANUARY, i + 1 ), resultList.get( i ) );
}
} );
}
@Test
@SkipForDialect(dialectClass = SybaseASEDialect.class, reason = "Sybase bug?")
public void testGenerateSeriesCorrelation(SessionFactoryScope scope) {
scope.inSession( em -> {
List<Integer> resultList = em.createQuery(
"select e from Book b join lateral generate_series(1,b.id) e order by e", Integer.class )
.getResultList();
assertEquals( 2, resultList.size() );
} );
}
@Test
public void testGenerateSeriesNegative(SessionFactoryScope scope) {
scope.inSession( em -> {
List<Integer> resultList = em.createQuery( "select e from generate_series(2, 1, -1) e order by e", Integer.class )
.getResultList();
assertEquals( 2, resultList.size() );
assertEquals( 1, resultList.get( 0 ) );
assertEquals( 2, resultList.get( 1 ) );
} );
}
@Test
public void testGenerateSeriesNoProgression(SessionFactoryScope scope) {
scope.inSession( em -> {
List<Integer> resultList = em.createQuery( "select e from generate_series(2, 1, 1) e", Integer.class )
.getResultList();
assertEquals( 0, resultList.size() );
} );
}
@Test
public void testGenerateSeriesNoProgressionOrdinality(SessionFactoryScope scope) {
scope.inSession( em -> {
List<Tuple> resultList = em.createQuery( "select index(e), e from generate_series(2, 1, 1) e", Tuple.class )
.getResultList();
assertEquals( 0, resultList.size() );
} );
}
@Test
public void testGenerateSeriesSameBounds(SessionFactoryScope scope) {
scope.inSession( em -> {
List<Integer> resultList = em.createQuery( "select e from generate_series(2, 2, 1) e", Integer.class )
.getResultList();
assertEquals( 1, resultList.size() );
assertEquals( 2, resultList.get( 0 ) );
} );
}
}

View File

@ -26,7 +26,6 @@ import org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl;
import org.hibernate.tool.schema.spi.ContributableMatcher;
import org.hibernate.tool.schema.spi.ExceptionHandler;
import org.hibernate.tool.schema.spi.ExecutionOptions;
import org.hibernate.tool.schema.spi.SchemaFilter;
import org.hibernate.tool.schema.spi.SchemaManagementTool;
import org.hibernate.tool.schema.spi.ScriptSourceInput;
import org.hibernate.tool.schema.spi.ScriptTargetOutput;

View File

@ -25,7 +25,6 @@ import org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl;
import org.hibernate.tool.schema.spi.ContributableMatcher;
import org.hibernate.tool.schema.spi.ExceptionHandler;
import org.hibernate.tool.schema.spi.ExecutionOptions;
import org.hibernate.tool.schema.spi.SchemaFilter;
import org.hibernate.tool.schema.spi.SchemaManagementTool;
import org.hibernate.tool.schema.spi.ScriptSourceInput;
import org.hibernate.tool.schema.spi.ScriptTargetOutput;

View File

@ -24,7 +24,6 @@ import org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl;
import org.hibernate.tool.schema.spi.ContributableMatcher;
import org.hibernate.tool.schema.spi.ExceptionHandler;
import org.hibernate.tool.schema.spi.ExecutionOptions;
import org.hibernate.tool.schema.spi.SchemaFilter;
import org.hibernate.tool.schema.spi.SchemaManagementTool;
import org.hibernate.tool.schema.spi.ScriptSourceInput;
import org.hibernate.tool.schema.spi.ScriptTargetOutput;

View File

@ -27,7 +27,6 @@ import org.hibernate.tool.schema.internal.ExceptionHandlerLoggedImpl;
import org.hibernate.tool.schema.spi.ContributableMatcher;
import org.hibernate.tool.schema.spi.ExceptionHandler;
import org.hibernate.tool.schema.spi.ExecutionOptions;
import org.hibernate.tool.schema.spi.SchemaFilter;
import org.hibernate.tool.schema.spi.SchemaManagementTool;
import org.hibernate.tool.schema.spi.ScriptSourceInput;
import org.hibernate.tool.schema.spi.ScriptTargetOutput;

View File

@ -835,6 +835,12 @@ abstract public class DialectFeatureChecks {
}
}
public static class SupportsGenerateSeries implements DialectFeatureCheck {
public boolean apply(Dialect dialect) {
return definesSetReturningFunction( dialect, "generate_series" );
}
}
public static class SupportsArrayAgg implements DialectFeatureCheck {
public boolean apply(Dialect dialect) {
return definesFunction( dialect, "array_agg" );

View File

@ -6,28 +6,25 @@ package org.hibernate.vector;
import java.util.List;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.hibernate.metamodel.mapping.MappingModelExpressible;
import org.hibernate.query.sqm.produce.function.FunctionArgumentTypeResolver;
import org.hibernate.query.sqm.produce.function.internal.AbstractFunctionArgumentTypeResolver;
import org.hibernate.query.sqm.sql.SqmToSqlAstConverter;
import org.hibernate.query.sqm.tree.SqmTypedNode;
import org.hibernate.query.sqm.tree.expression.SqmExpression;
import org.hibernate.query.sqm.tree.expression.SqmFunction;
import org.hibernate.type.SqlTypes;
import org.hibernate.type.StandardBasicTypes;
/**
* A {@link FunctionArgumentTypeResolver} for {@link SqlTypes#VECTOR} functions.
*/
public class VectorArgumentTypeResolver implements FunctionArgumentTypeResolver {
public class VectorArgumentTypeResolver extends AbstractFunctionArgumentTypeResolver {
public static final FunctionArgumentTypeResolver INSTANCE = new VectorArgumentTypeResolver();
@Override
public MappingModelExpressible<?> resolveFunctionArgumentType(
SqmFunction<?> function,
int argumentIndex,
SqmToSqlAstConverter converter) {
final List<? extends SqmTypedNode<?>> arguments = function.getArguments();
public @Nullable MappingModelExpressible<?> resolveFunctionArgumentType(List<? extends SqmTypedNode<?>> arguments, int argumentIndex, SqmToSqlAstConverter converter) {
for ( int i = 0; i < arguments.size(); i++ ) {
if ( i != argumentIndex ) {
final SqmTypedNode<?> node = arguments.get( i );

View File

@ -83,7 +83,8 @@ A set-returning function is a new type of function that can return rows and is e
The concept is known in many different database SQL dialects and is sometimes referred to as table valued function or table function.
Custom set-returning functions can be registered via a `FunctionContributor` and Hibernate ORM
also comes with out-of-the-box support for the set-returning function `unnest()`, which allows to turn an array into rows.
also comes with out-of-the-box support for the set-returning functions `unnest()`, which allows to turn an array into rows,
and `generate_series()`, which can be used to create a series of values as rows.
[[cleanup]]
== Clean-up