HHH-18798 Add JSON aggregate support for SQL Server

Author: beikov

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/SQLServerLegacyDialect.java

@@ -19,6 +19,8 @@
 import org.hibernate.dialect.SQLServerCastingXmlArrayJdbcTypeConstructor;
 import org.hibernate.dialect.SQLServerCastingXmlJdbcType;
 import org.hibernate.dialect.TimeZoneSupport;
+import org.hibernate.dialect.aggregate.AggregateSupport;
+import org.hibernate.dialect.aggregate.SQLServerAggregateSupport;
 import org.hibernate.dialect.function.CommonFunctionFactory;
 import org.hibernate.dialect.function.CountFunction;
 import org.hibernate.dialect.function.SQLServerFormatEmulation;
@@ -504,6 +506,11 @@ protected <T extends JdbcOperation> SqlAstTranslator<T> buildTranslator(
 		};
 	}
 
+	@Override
+	public AggregateSupport getAggregateSupport() {
+		return SQLServerAggregateSupport.valueOf( this );
+	}
+
 	@Override
 	public SizeStrategy getSizeStrategy() {
 		return sizeStrategy;

hibernate-core/src/main/java/org/hibernate/dialect/SQLServerDialect.java

@@ -25,6 +25,8 @@
 import org.hibernate.boot.model.relational.QualifiedSequenceName;
 import org.hibernate.boot.model.relational.Sequence;
 import org.hibernate.boot.model.relational.SqlStringGenerationContext;
+import org.hibernate.dialect.aggregate.AggregateSupport;
+import org.hibernate.dialect.aggregate.SQLServerAggregateSupport;
 import org.hibernate.dialect.function.CommonFunctionFactory;
 import org.hibernate.dialect.function.CountFunction;
 import org.hibernate.dialect.function.SQLServerFormatEmulation;
@@ -511,6 +513,11 @@ protected <T extends JdbcOperation> SqlAstTranslator<T> buildTranslator(
 		};
 	}
 
+	@Override
+	public AggregateSupport getAggregateSupport() {
+		return SQLServerAggregateSupport.valueOf( this );
+	}
+
 	@Override
 	public SizeStrategy getSizeStrategy() {
 		return sizeStrategy;