HHH-18792 Add JSON aggregate support for H2
This commit is contained in:
Christian Beikov
parent
7fec477bc2
commit
f7c5ff28f0
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@ -19,6 +19,8 @@ import org.hibernate.PessimisticLockException;
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import org.hibernate.QueryTimeoutException;
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import org.hibernate.boot.model.FunctionContributions;
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import org.hibernate.boot.model.TypeContributions;
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import org.hibernate.dialect.aggregate.AggregateSupport;
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import org.hibernate.dialect.aggregate.H2AggregateSupport;
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import org.hibernate.dialect.function.CommonFunctionFactory;
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import org.hibernate.dialect.identity.H2FinalTableIdentityColumnSupport;
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import org.hibernate.dialect.identity.IdentityColumnSupport;
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@ -250,6 +252,11 @@ public class H2Dialect extends Dialect {
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jdbcTypeRegistry.addDescriptor( OrdinalEnumJdbcType.INSTANCE );
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}
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@Override
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public AggregateSupport getAggregateSupport() {
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return H2AggregateSupport.valueOf( this );
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}
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@Override
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public int getDefaultStatementBatchSize() {
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return 15;
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@ -0,0 +1,356 @@
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/*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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* Copyright Red Hat Inc. and Hibernate Authors
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*/
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package org.hibernate.dialect.aggregate;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import org.hibernate.dialect.Dialect;
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import org.hibernate.internal.util.StringHelper;
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import org.hibernate.mapping.Column;
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import org.hibernate.metamodel.mapping.EmbeddableMappingType;
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import org.hibernate.metamodel.mapping.JdbcMapping;
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import org.hibernate.metamodel.mapping.SelectableMapping;
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import org.hibernate.metamodel.mapping.SelectablePath;
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import org.hibernate.metamodel.mapping.SqlTypedMapping;
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import org.hibernate.sql.ast.SqlAstNodeRenderingMode;
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import org.hibernate.sql.ast.SqlAstTranslator;
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import org.hibernate.sql.ast.spi.SqlAppender;
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import org.hibernate.type.BasicPluralType;
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import org.hibernate.type.descriptor.jdbc.AggregateJdbcType;
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import org.hibernate.type.spi.TypeConfiguration;
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import org.checkerframework.checker.nullness.qual.Nullable;
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import static org.hibernate.type.SqlTypes.ARRAY;
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import static org.hibernate.type.SqlTypes.BINARY;
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import static org.hibernate.type.SqlTypes.JSON;
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import static org.hibernate.type.SqlTypes.JSON_ARRAY;
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import static org.hibernate.type.SqlTypes.LONG32VARBINARY;
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import static org.hibernate.type.SqlTypes.VARBINARY;
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public class H2AggregateSupport extends AggregateSupportImpl {
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private static final AggregateSupport INSTANCE = new H2AggregateSupport();
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public static @Nullable AggregateSupport valueOf(Dialect dialect) {
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return dialect.getVersion().isSameOrAfter( 2, 2, 220 )
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? H2AggregateSupport.INSTANCE
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: null;
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}
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@Override
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public String aggregateComponentCustomReadExpression(
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String template,
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String placeholder,
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String aggregateParentReadExpression,
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String columnExpression,
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int aggregateColumnTypeCode,
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SqlTypedMapping column) {
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switch ( aggregateColumnTypeCode ) {
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case JSON_ARRAY:
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case JSON:
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switch ( column.getJdbcMapping().getJdbcType().getDefaultSqlTypeCode() ) {
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case JSON:
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case JSON_ARRAY:
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return template.replace(
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placeholder,
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"(" + aggregateParentReadExpression + ").\"" + columnExpression + "\""
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);
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case BINARY:
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case VARBINARY:
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case LONG32VARBINARY:
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// We encode binary data as hex, so we have to decode here
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return template.replace(
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placeholder,
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hexDecodeExpression( queryExpression( "(" + aggregateParentReadExpression + ").\"" + columnExpression + "\"" ), column.getColumnDefinition() )
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);
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case ARRAY:
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final BasicPluralType<?, ?> pluralType = (BasicPluralType<?, ?>) column.getJdbcMapping();
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final String elementTypeName = getElementTypeName( column.getColumnDefinition() );
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switch ( pluralType.getElementType().getJdbcType().getDefaultSqlTypeCode() ) {
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case BINARY:
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case VARBINARY:
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case LONG32VARBINARY:
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// We encode binary data as hex, so we have to decode here
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return template.replace(
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placeholder,
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"(select array_agg(" + hexDecodeExpression( queryExpression( "(" + aggregateParentReadExpression + ").\"" + columnExpression + "\"[i.x]" ), elementTypeName ) + ") from system_range(1,10000) i where i.x<=coalesce(array_length((" + aggregateParentReadExpression + ").\"" + columnExpression + "\"),0))"
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);
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default:
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return template.replace(
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placeholder,
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"(select array_agg(" + valueExpression( "(" + aggregateParentReadExpression + ").\"" + columnExpression + "\"[i.x]", elementTypeName ) + ") from system_range(1,10000) i where i.x<=coalesce(array_length((" + aggregateParentReadExpression + ").\"" + columnExpression + "\"),0))"
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);
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}
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default:
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return template.replace(
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placeholder,
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columnExpression( aggregateParentReadExpression, columnExpression, column.getColumnDefinition() )
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);
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}
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}
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throw new IllegalArgumentException( "Unsupported aggregate SQL type: " + aggregateColumnTypeCode );
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}
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private static String getElementTypeName(String arrayTypeName) {
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final String elementTypeName = arrayTypeName.substring( 0, arrayTypeName.lastIndexOf( " array" ) );
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// Doing array_agg on clob produces funky results
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return elementTypeName.equals( "clob" ) ? "varchar" : elementTypeName;
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}
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private static String columnExpression(String aggregateParentReadExpression, String columnExpression, String columnType) {
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return valueExpression( "(" + aggregateParentReadExpression + ").\"" + columnExpression + "\"", columnType );
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}
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private static String hexDecodeExpression(String valueExpression, String columnType) {
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return "cast(hextoraw(regexp_replace(" + valueExpression + ",'([0-9a-f][0-9a-f])','00$1')) as " + columnType + ")";
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}
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private static String valueExpression(String valueExpression, String columnType) {
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return "cast(" + queryExpression( valueExpression ) + " as " + columnType + ')';
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}
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private static String queryExpression(String valueExpression) {
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// First we produce a SQL null if we see a JSON null
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// Next, we replace quotes that surround the value
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// Finally, we undo escaping that was done to a string
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return "stringdecode(regexp_replace(nullif(" + valueExpression + ",JSON'null'),'^\"(.*)\"$','$1'))";
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}
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private static String jsonCustomWriteExpression(String customWriteExpression, JdbcMapping jdbcMapping) {
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final int sqlTypeCode = jdbcMapping.getJdbcType().getDefaultSqlTypeCode();
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switch ( sqlTypeCode ) {
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case BINARY:
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case VARBINARY:
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case LONG32VARBINARY:
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// We encode binary data as hex
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return "rawtohex(" + customWriteExpression + ")";
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case ARRAY:
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final BasicPluralType<?, ?> pluralType = (BasicPluralType<?, ?>) jdbcMapping;
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switch ( pluralType.getElementType().getJdbcType().getDefaultSqlTypeCode() ) {
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case BINARY:
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case VARBINARY:
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case LONG32VARBINARY:
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// We encode binary data as hex
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return "(select array_agg(rawtohex(t.c1)) from unnest(" + customWriteExpression + ") t)";
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default:
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return customWriteExpression;
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}
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default:
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return customWriteExpression;
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}
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}
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@Override
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public String aggregateComponentAssignmentExpression(
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String aggregateParentAssignmentExpression,
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String columnExpression,
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int aggregateColumnTypeCode,
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Column column) {
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switch ( aggregateColumnTypeCode ) {
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case JSON:
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case JSON_ARRAY:
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// For JSON we always have to replace the whole object
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return aggregateParentAssignmentExpression;
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}
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throw new IllegalArgumentException( "Unsupported aggregate SQL type: " + aggregateColumnTypeCode );
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}
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@Override
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public boolean requiresAggregateCustomWriteExpressionRenderer(int aggregateSqlTypeCode) {
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switch ( aggregateSqlTypeCode ) {
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case JSON:
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return true;
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}
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return false;
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}
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@Override
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public WriteExpressionRenderer aggregateCustomWriteExpressionRenderer(
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SelectableMapping aggregateColumn,
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SelectableMapping[] columnsToUpdate,
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TypeConfiguration typeConfiguration) {
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final int aggregateSqlTypeCode = aggregateColumn.getJdbcMapping().getJdbcType().getDefaultSqlTypeCode();
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switch ( aggregateSqlTypeCode ) {
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case JSON:
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return jsonAggregateColumnWriter( aggregateColumn, columnsToUpdate );
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}
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throw new IllegalArgumentException( "Unsupported aggregate SQL type: " + aggregateSqlTypeCode );
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}
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private WriteExpressionRenderer jsonAggregateColumnWriter(
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SelectableMapping aggregateColumn,
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SelectableMapping[] columns) {
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return new RootJsonWriteExpression( aggregateColumn, columns );
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}
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interface JsonWriteExpression {
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void append(
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SqlAppender sb,
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String path,
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SqlAstTranslator<?> translator,
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AggregateColumnWriteExpression expression);
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}
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private static class AggregateJsonWriteExpression implements JsonWriteExpression {
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private final LinkedHashMap<String, JsonWriteExpression> subExpressions = new LinkedHashMap<>();
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protected void initializeSubExpressions(SelectableMapping aggregateColumn, SelectableMapping[] columns) {
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for ( SelectableMapping column : columns ) {
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final SelectablePath selectablePath = column.getSelectablePath();
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final SelectablePath[] parts = selectablePath.getParts();
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AggregateJsonWriteExpression currentAggregate = this;
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for ( int i = 1; i < parts.length - 1; i++ ) {
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currentAggregate = (AggregateJsonWriteExpression) currentAggregate.subExpressions.computeIfAbsent(
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parts[i].getSelectableName(),
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k -> new AggregateJsonWriteExpression()
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);
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}
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final String customWriteExpression = column.getWriteExpression();
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currentAggregate.subExpressions.put(
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parts[parts.length - 1].getSelectableName(),
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new BasicJsonWriteExpression(
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column,
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jsonCustomWriteExpression( customWriteExpression, column.getJdbcMapping() )
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)
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);
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}
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passThroughUnsetSubExpressions( aggregateColumn );
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}
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protected void passThroughUnsetSubExpressions(SelectableMapping aggregateColumn) {
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final AggregateJdbcType aggregateJdbcType = (AggregateJdbcType) aggregateColumn.getJdbcMapping().getJdbcType();
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final EmbeddableMappingType embeddableMappingType = aggregateJdbcType.getEmbeddableMappingType();
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final int jdbcValueCount = embeddableMappingType.getJdbcValueCount();
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for ( int i = 0; i < jdbcValueCount; i++ ) {
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final SelectableMapping selectableMapping = embeddableMappingType.getJdbcValueSelectable( i );
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final JsonWriteExpression jsonWriteExpression = subExpressions.get( selectableMapping.getSelectableName() );
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if ( jsonWriteExpression == null ) {
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subExpressions.put(
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selectableMapping.getSelectableName(),
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new PassThroughExpression( selectableMapping )
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);
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}
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else if ( jsonWriteExpression instanceof AggregateJsonWriteExpression writeExpression ) {
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writeExpression.passThroughUnsetSubExpressions( selectableMapping );
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}
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}
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}
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@Override
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public void append(
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SqlAppender sb,
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String path,
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SqlAstTranslator<?> translator,
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AggregateColumnWriteExpression expression) {
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sb.append( "json_object" );
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char separator = '(';
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for ( Map.Entry<String, JsonWriteExpression> entry : subExpressions.entrySet() ) {
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final String column = entry.getKey();
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final JsonWriteExpression value = entry.getValue();
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final String subPath = path + ".\"" + column + "\"";
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sb.append( separator );
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if ( value instanceof AggregateJsonWriteExpression ) {
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sb.append( '\'' );
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sb.append( column );
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sb.append( "':coalesce(" );
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value.append( sb, subPath, translator, expression );
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sb.append( ",json_object())" );
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}
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else {
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value.append( sb, subPath, translator, expression );
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}
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separator = ',';
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}
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sb.append( ')' );
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}
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}
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private static class RootJsonWriteExpression extends AggregateJsonWriteExpression
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implements WriteExpressionRenderer {
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private final String path;
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RootJsonWriteExpression(SelectableMapping aggregateColumn, SelectableMapping[] columns) {
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this.path = aggregateColumn.getSelectionExpression();
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initializeSubExpressions( aggregateColumn, columns );
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}
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@Override
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public void render(
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SqlAppender sqlAppender,
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SqlAstTranslator<?> translator,
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AggregateColumnWriteExpression aggregateColumnWriteExpression,
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String qualifier) {
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final String basePath;
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if ( qualifier == null || qualifier.isBlank() ) {
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basePath = path;
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}
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else {
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basePath = qualifier + "." + path;
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}
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append( sqlAppender, "(" + basePath + ")", translator, aggregateColumnWriteExpression );
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}
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}
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private static class BasicJsonWriteExpression implements JsonWriteExpression {
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private final SelectableMapping selectableMapping;
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private final String customWriteExpressionStart;
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private final String customWriteExpressionEnd;
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BasicJsonWriteExpression(SelectableMapping selectableMapping, String customWriteExpression) {
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this.selectableMapping = selectableMapping;
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if ( customWriteExpression.equals( "?" ) ) {
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this.customWriteExpressionStart = "";
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this.customWriteExpressionEnd = "";
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}
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else {
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final String[] parts = StringHelper.split( "?", customWriteExpression );
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assert parts.length == 2;
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this.customWriteExpressionStart = parts[0];
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this.customWriteExpressionEnd = parts[1];
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}
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}
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@Override
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public void append(
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SqlAppender sb,
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String path,
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SqlAstTranslator<?> translator,
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AggregateColumnWriteExpression expression) {
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sb.append( '\'' );
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sb.append( selectableMapping.getSelectableName() );
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sb.append( "':" );
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sb.append( customWriteExpressionStart );
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// We use NO_UNTYPED here so that expressions which require type inference are casted explicitly,
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// since we don't know how the custom write expression looks like where this is embedded,
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// so we have to be pessimistic and avoid ambiguities
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translator.render( expression.getValueExpression( selectableMapping ), SqlAstNodeRenderingMode.NO_UNTYPED );
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sb.append( customWriteExpressionEnd );
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}
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}
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private static class PassThroughExpression implements JsonWriteExpression {
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private final SelectableMapping selectableMapping;
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PassThroughExpression(SelectableMapping selectableMapping) {
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this.selectableMapping = selectableMapping;
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}
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@Override
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public void append(
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SqlAppender sb,
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String path,
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SqlAstTranslator<?> translator,
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AggregateColumnWriteExpression expression) {
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sb.append( '\'' );
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sb.append( selectableMapping.getSelectableName() );
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sb.append( "':" );
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sb.append( path );
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}
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}
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}
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@ -45,11 +45,20 @@ public class H2JsonQueryFunction extends JsonQueryFunction {
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arguments.jsonPath(),
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arguments.passingClause(),
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arguments.wrapMode(),
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arguments.emptyBehavior(),
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walker
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);
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}
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static void appendJsonQuery(SqlAppender sqlAppender, Expression jsonDocument, boolean isJsonType, Expression jsonPathExpression, @Nullable JsonPathPassingClause passingClause, @Nullable JsonQueryWrapMode wrapMode, SqlAstTranslator<?> walker) {
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static void appendJsonQuery(
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SqlAppender sqlAppender,
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Expression jsonDocument,
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boolean isJsonType,
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Expression jsonPathExpression,
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@Nullable JsonPathPassingClause passingClause,
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@Nullable JsonQueryWrapMode wrapMode,
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@Nullable JsonQueryEmptyBehavior emptyBehavior,
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SqlAstTranslator<?> walker) {
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final String jsonPath;
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try {
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jsonPath = walker.getLiteralValue( jsonPathExpression );
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@ -57,16 +66,27 @@ public class H2JsonQueryFunction extends JsonQueryFunction {
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catch (Exception ex) {
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throw new QueryException( "H2 json_query only support literal json paths, but got " + jsonPathExpression );
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}
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appendJsonQuery( sqlAppender, jsonDocument, isJsonType, jsonPath, passingClause, wrapMode, walker );
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appendJsonQuery( sqlAppender, jsonDocument, isJsonType, jsonPath, passingClause, wrapMode, emptyBehavior, walker );
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}
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static void appendJsonQuery(SqlAppender sqlAppender, Expression jsonDocument, boolean isJsonType, String jsonPath, @Nullable JsonPathPassingClause passingClause, @Nullable JsonQueryWrapMode wrapMode, SqlAstTranslator<?> walker) {
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static void appendJsonQuery(
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SqlAppender sqlAppender,
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Expression jsonDocument,
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boolean isJsonType,
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String jsonPath,
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@Nullable JsonPathPassingClause passingClause,
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@Nullable JsonQueryWrapMode wrapMode,
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@Nullable JsonQueryEmptyBehavior emptyBehavior,
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SqlAstTranslator<?> walker) {
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if ( emptyBehavior == JsonQueryEmptyBehavior.EMPTY_ARRAY || emptyBehavior == JsonQueryEmptyBehavior.EMPTY_OBJECT ) {
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sqlAppender.appendSql( "coalesce(" );
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}
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if ( wrapMode == JsonQueryWrapMode.WITH_WRAPPER ) {
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sqlAppender.appendSql( "'['||" );
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}
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sqlAppender.appendSql( "stringdecode(btrim(nullif(" );
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sqlAppender.appendSql( "cast(" );
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sqlAppender.appendSql( "stringdecode(regexp_replace(nullif(" );
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H2JsonValueFunction.renderJsonPath(
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sqlAppender,
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jsonDocument,
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@ -75,10 +95,15 @@ public class H2JsonQueryFunction extends JsonQueryFunction {
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jsonPath,
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passingClause
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);
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sqlAppender.appendSql( " as varchar)" );
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sqlAppender.appendSql( ",'null'),'\"'))");
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sqlAppender.appendSql( ",JSON'null'),'^\"(.*)\"$','$1'))");
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if ( wrapMode == JsonQueryWrapMode.WITH_WRAPPER ) {
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sqlAppender.appendSql( "||']'" );
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}
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if ( emptyBehavior == JsonQueryEmptyBehavior.EMPTY_ARRAY ) {
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sqlAppender.appendSql( ",'[]')" );
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}
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else if ( emptyBehavior == JsonQueryEmptyBehavior.EMPTY_OBJECT ) {
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sqlAppender.appendSql( ",'{}')" );
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}
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}
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}
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@ -63,6 +63,7 @@ import java.util.Collections;
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import java.util.List;
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import java.util.Set;
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/**
|
||||
* H2 json_table function.
|
||||
* <p>
|
||||
|
|
@ -662,15 +663,26 @@ public class H2JsonTableFunction extends JsonTableFunction {
|
|||
|
||||
private String castValueExpression(String baseReadExpression, CastTarget castTarget, @Nullable Literal defaultExpression, SqmToSqlAstConverter converter) {
|
||||
final StringBuilder sb = new StringBuilder( baseReadExpression.length() + 200 );
|
||||
sb.append( "cast(stringdecode(btrim(nullif(" );
|
||||
if ( defaultExpression != null ) {
|
||||
sb.append( "coalesce(" );
|
||||
}
|
||||
final boolean hexDecoding = H2JsonValueFunction.needsHexDecoding( castTarget.getJdbcMapping() );
|
||||
sb.append( "cast(" );
|
||||
if ( hexDecoding ) {
|
||||
// We encode binary data as hex, so we have to decode here
|
||||
sb.append( "hextoraw(regexp_replace(" );
|
||||
}
|
||||
sb.append( "stringdecode(regexp_replace(nullif(" );
|
||||
sb.append( baseReadExpression );
|
||||
sb.append( " as varchar)" );
|
||||
sb.append( ",JSON'null'),'^\"(.*)\"$','$1'))" );
|
||||
if ( hexDecoding ) {
|
||||
sb.append( ",'([0-9a-f][0-9a-f])','00$1'))" );
|
||||
}
|
||||
sb.append( " as " );
|
||||
sb.append( determineColumnType( castTarget, converter.getCreationContext().getTypeConfiguration() ) );
|
||||
sb.append( ')' );
|
||||
if ( defaultExpression != null ) {
|
||||
sb.append( ",cast(" );
|
||||
sb.append( ',' );
|
||||
//noinspection unchecked
|
||||
final String sqlLiteral = defaultExpression.getJdbcMapping().getJdbcLiteralFormatter().toJdbcLiteral(
|
||||
defaultExpression.getLiteralValue(),
|
||||
|
|
@ -678,13 +690,8 @@ public class H2JsonTableFunction extends JsonTableFunction {
|
|||
converter.getCreationContext().getSessionFactory().getWrapperOptions()
|
||||
);
|
||||
sb.append( sqlLiteral );
|
||||
sb.append( " as varchar))" );
|
||||
sb.append( ')' );
|
||||
}
|
||||
sb.append( ",'null'),'\"'))");
|
||||
|
||||
sb.append( " as " );
|
||||
sb.append( determineColumnType( castTarget, converter.getCreationContext().getTypeConfiguration() ) );
|
||||
sb.append( ')' );
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
|
|
@ -703,18 +710,25 @@ public class H2JsonTableFunction extends JsonTableFunction {
|
|||
|
||||
private String castQueryExpression(String baseReadExpression, JsonQueryEmptyBehavior emptyBehavior, JsonQueryWrapMode wrapMode, SqmToSqlAstConverter converter) {
|
||||
final StringBuilder sb = new StringBuilder( baseReadExpression.length() + 200 );
|
||||
if ( emptyBehavior == JsonQueryEmptyBehavior.EMPTY_ARRAY || emptyBehavior == JsonQueryEmptyBehavior.EMPTY_OBJECT ) {
|
||||
sb.append( "coalesce(" );
|
||||
}
|
||||
if ( wrapMode == JsonQueryWrapMode.WITH_WRAPPER ) {
|
||||
sb.append( "'['||" );
|
||||
}
|
||||
|
||||
sb.append( "stringdecode(btrim(nullif(" );
|
||||
sb.append( "cast(" );
|
||||
sb.append( "stringdecode(regexp_replace(nullif(" );
|
||||
sb.append( baseReadExpression );
|
||||
sb.append( " as varchar)" );
|
||||
sb.append( ",'null'),'\"'))");
|
||||
sb.append( ",JSON'null'),'^\"(.*)\"$','$1'))");
|
||||
if ( wrapMode == JsonQueryWrapMode.WITH_WRAPPER ) {
|
||||
sb.append( "||']'" );
|
||||
}
|
||||
if ( emptyBehavior == JsonQueryEmptyBehavior.EMPTY_ARRAY ) {
|
||||
sb.append( ",'[]')" );
|
||||
}
|
||||
else if ( emptyBehavior == JsonQueryEmptyBehavior.EMPTY_OBJECT ) {
|
||||
sb.append( ",'{}')" );
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@ import java.util.List;
|
|||
|
||||
import org.hibernate.QueryException;
|
||||
import org.hibernate.internal.util.QuotingHelper;
|
||||
import org.hibernate.metamodel.mapping.JdbcMapping;
|
||||
import org.hibernate.query.ReturnableType;
|
||||
import org.hibernate.sql.ast.SqlAstTranslator;
|
||||
import org.hibernate.sql.ast.spi.SqlAppender;
|
||||
|
|
@ -20,6 +21,10 @@ import org.hibernate.type.spi.TypeConfiguration;
|
|||
|
||||
import org.checkerframework.checker.nullness.qual.Nullable;
|
||||
|
||||
import static org.hibernate.type.SqlTypes.BINARY;
|
||||
import static org.hibernate.type.SqlTypes.LONG32VARBINARY;
|
||||
import static org.hibernate.type.SqlTypes.VARBINARY;
|
||||
|
||||
/**
|
||||
* H2 json_value function.
|
||||
*/
|
||||
|
|
@ -45,8 +50,20 @@ public class H2JsonValueFunction extends JsonValueFunction {
|
|||
final Expression defaultExpression = arguments.emptyBehavior() == null
|
||||
? null
|
||||
: arguments.emptyBehavior().getDefaultExpression();
|
||||
if ( defaultExpression != null ) {
|
||||
sqlAppender.appendSql( "coalesce(" );
|
||||
}
|
||||
final boolean hexDecoding;
|
||||
if ( arguments.returningType() != null ) {
|
||||
hexDecoding = H2JsonValueFunction.needsHexDecoding( arguments.returningType().getJdbcMapping() );
|
||||
sqlAppender.appendSql( "cast(" );
|
||||
if ( hexDecoding ) {
|
||||
// We encode binary data as hex, so we have to decode here
|
||||
sqlAppender.appendSql( "hextoraw(regexp_replace(" );
|
||||
}
|
||||
}
|
||||
else {
|
||||
hexDecoding = false;
|
||||
}
|
||||
final String jsonPath;
|
||||
try {
|
||||
|
|
@ -56,11 +73,7 @@ public class H2JsonValueFunction extends JsonValueFunction {
|
|||
throw new QueryException( "H2 json_value only support literal json paths, but got " + arguments.jsonPath() );
|
||||
}
|
||||
|
||||
sqlAppender.appendSql( "stringdecode(btrim(nullif(" );
|
||||
if ( defaultExpression != null ) {
|
||||
sqlAppender.appendSql( "coalesce(" );
|
||||
}
|
||||
sqlAppender.appendSql( "cast(" );
|
||||
sqlAppender.appendSql( "stringdecode(regexp_replace(nullif(" );
|
||||
renderJsonPath(
|
||||
sqlAppender,
|
||||
arguments.jsonDocument(),
|
||||
|
|
@ -69,19 +82,28 @@ public class H2JsonValueFunction extends JsonValueFunction {
|
|||
jsonPath,
|
||||
arguments.passingClause()
|
||||
);
|
||||
sqlAppender.appendSql( " as varchar)" );
|
||||
if ( defaultExpression != null ) {
|
||||
sqlAppender.appendSql( ",cast(" );
|
||||
defaultExpression.accept( walker );
|
||||
sqlAppender.appendSql( " as varchar))" );
|
||||
}
|
||||
sqlAppender.appendSql( ",'null'),'\"'))");
|
||||
sqlAppender.appendSql( ",JSON'null'),'^\"(.*)\"$','$1'))");
|
||||
|
||||
if ( arguments.returningType() != null ) {
|
||||
if ( hexDecoding ) {
|
||||
sqlAppender.appendSql( ",'([0-9a-f][0-9a-f])','00$1'))" );
|
||||
}
|
||||
sqlAppender.appendSql( " as " );
|
||||
arguments.returningType().accept( walker );
|
||||
sqlAppender.appendSql( ')' );
|
||||
}
|
||||
if ( defaultExpression != null ) {
|
||||
sqlAppender.appendSql( ',' );
|
||||
defaultExpression.accept( walker );
|
||||
sqlAppender.appendSql( ')' );
|
||||
}
|
||||
}
|
||||
|
||||
public static boolean needsHexDecoding(JdbcMapping jdbcMapping) {
|
||||
return switch ( jdbcMapping.getJdbcType().getDefaultSqlTypeCode() ) {
|
||||
case BINARY, VARBINARY, LONG32VARBINARY -> true;
|
||||
default -> false;
|
||||
};
|
||||
}
|
||||
|
||||
public static void renderJsonPath(
|
||||
|
|
|
|||
|
|
@ -54,6 +54,11 @@ public class EnumJdbcType implements JdbcType {
|
|||
return "ENUM";
|
||||
}
|
||||
|
||||
@Override
|
||||
public Class<?> getPreferredJavaTypeClass(WrapperOptions options) {
|
||||
return String.class;
|
||||
}
|
||||
|
||||
@Override
|
||||
public <X> ValueBinder<X> getBinder(JavaType<X> javaType) {
|
||||
return new BasicBinder<>( javaType, this ) {
|
||||
|
|
@ -68,6 +73,11 @@ public class EnumJdbcType implements JdbcType {
|
|||
throws SQLException {
|
||||
st.setString( name, getJavaType().unwrap( value, String.class, options ) );
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object getBindValue(X value, WrapperOptions options) throws SQLException {
|
||||
return getJavaType().unwrap( value, String.class, options );
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue