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try to make var_xxx() and sdtev_xxx() more portable

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This commit is contained in:
Gavin King 2022-10-08 19:03:30 +02:00
parent 477f1e7af6
commit f5a5990d03
6 changed files with 23 additions and 9 deletions
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2
documentation/src/test/java/org/hibernate/userguide/hql/HQLTest.java
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@ -1795,7 +1795,7 @@ public void test_hql_current_timestamp_function_example() {
}
@Test
@RequiresDialect({MySQLDialect.class, PostgreSQLDialect.class, H2Dialect.class, DerbyDialect.class, OracleDialect.class})
// @RequiresDialect({MySQLDialect.class, PostgreSQLDialect.class, H2Dialect.class, DerbyDialect.class, OracleDialect.class})
public void test_var_function_example() {
doInJPA(this::entityManagerFactory, entityManager -> {
//tag::hql-native-function-example[]

3
hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/DB2LegacyDialect.java
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@ -277,9 +277,10 @@ public void initializeFunctionRegistry(QueryEngine queryEngine) {
functionFactory.median();
functionFactory.stddev();
functionFactory.stddevPopSamp();
functionFactory.varPopSamp();
functionFactory.regrLinearRegressionAggregates();
functionFactory.variance();
functionFactory.stdevVarianceSamp();
functionFactory.varianceSamp();
functionFactory.addYearsMonthsDaysHoursMinutesSeconds();
functionFactory.yearsMonthsDaysHoursMinutesSecondsBetween();
functionFactory.dateTrunc();

3
hibernate-core/src/main/java/org/hibernate/dialect/DB2Dialect.java
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@ -259,9 +259,10 @@ public void initializeFunctionRegistry(QueryEngine queryEngine) {
functionFactory.median();
functionFactory.stddev();
functionFactory.stddevPopSamp();
functionFactory.varPopSamp();
functionFactory.regrLinearRegressionAggregates();
functionFactory.variance();
functionFactory.stdevVarianceSamp();
functionFactory.varianceSamp();
functionFactory.addYearsMonthsDaysHoursMinutesSeconds();
functionFactory.yearsMonthsDaysHoursMinutesSecondsBetween();
functionFactory.dateTrunc();

7
hibernate-core/src/main/java/org/hibernate/dialect/SybaseDialect.java
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@ -208,6 +208,13 @@ public void initializeFunctionRegistry(QueryEngine queryEngine) {
CommonFunctionFactory functionFactory = new CommonFunctionFactory(queryEngine);
functionFactory.stddev();
functionFactory.variance();
functionFactory.stddevPopSamp_stdevp();
functionFactory.varPopSamp_varp();
functionFactory.stddevPopSamp();
functionFactory.varPopSamp();
// For SQL-Server we need to cast certain arguments to varchar(16384) to be able to concat them
queryEngine.getSqmFunctionRegistry().register(
"count",

7
hibernate-core/src/main/java/org/hibernate/dialect/function/CommonFunctionFactory.java
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@ -419,12 +419,7 @@ public void regrLinearRegressionAggregates() {
/**
* DB2
*/
public void stdevVarianceSamp() {
functionRegistry.namedAggregateDescriptorBuilder( "stddev_samp" )
.setInvariantType(doubleType)
.setExactArgumentCount( 1 )
.setParameterTypes(NUMERIC)
.register();
public void varianceSamp() {
functionRegistry.namedAggregateDescriptorBuilder( "variance_samp" )
.setInvariantType(doubleType)
.setExactArgumentCount( 1 )

10
hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/FunctionTests.java
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@ -926,6 +926,16 @@ public void testAggregateFunctions(SessionFactoryScope scope) {
);
}
@Test
public void testStatisticalFunctions(SessionFactoryScope scope) {
scope.inTransaction(
session -> {
session.createQuery("select var_samp(e.theDouble), var_pop(abs(e.theDouble)), stddev_samp(e.theDouble), stddev_pop(e.theDouble) from EntityOfBasics e")
.list();
}
);
}
@Test
public void testCurrentDateTimeFunctions(SessionFactoryScope scope) {
scope.inTransaction(