HHH-10150 - Override PostgreSQL9Dialect#getDefaultMultiTableBulkIdStrategy() causing exception in deleting joined subclasses

Author: dreab8

hibernate-core/src/main/java/org/hibernate/dialect/PostgreSQL9Dialect.java

@@ -6,6 +6,11 @@
  */
 package org.hibernate.dialect;
 
+import org.hibernate.hql.spi.id.IdTableSupportStandardImpl;
+import org.hibernate.hql.spi.id.MultiTableBulkIdStrategy;
+import org.hibernate.hql.spi.id.local.AfterUseAction;
+import org.hibernate.hql.spi.id.local.LocalTemporaryTableBulkIdStrategy;
+
 /**
  * An SQL dialect for Postgres 9 and later.  Adds support for "if exists" when dropping constraints
  * 
@@ -16,4 +21,23 @@ public class PostgreSQL9Dialect extends PostgreSQL82Dialect {
 	public boolean supportsIfExistsBeforeConstraintName() {
 		return true;
 	}
+
+	@Override
+	public MultiTableBulkIdStrategy getDefaultMultiTableBulkIdStrategy() {
+		return new LocalTemporaryTableBulkIdStrategy(
+				new IdTableSupportStandardImpl() {
+					@Override
+					public String getCreateIdTableCommand() {
+						return "create temporary  table";
+					}
+
+					@Override
+					public String getDropIdTableCommand() {
+						return "drop table";
+					}
+				},
+				AfterUseAction.DROP,
+				null
+		);
+	}
 }