HHH-19365 GaussDB Dialect Support-fix some tests fail

Author: liubao68

hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/FunctionTests.java

@@ -1787,8 +1787,6 @@ public void testDurationArithmeticOverflowing(SessionFactoryScope scope) {
 	}
 
 	@Test
-	@SkipForDialect(dialectClass = GaussDBDialect.class,
-			reason = "GaussDB driver does not support implicit type casting to Long or Duration.")
 	public void testDurationArithmeticWithLiterals(SessionFactoryScope scope) {
 		scope.inTransaction(
 				session -> {
@@ -1891,8 +1889,6 @@ public void testDurationSubtractionWithTimeLiterals(SessionFactoryScope scope) {
 	@SkipForDialect(dialectClass = SybaseDialect.class,
 			matchSubTypes = true,
 			reason = "numeric overflow")
-	@SkipForDialect(dialectClass = GaussDBDialect.class,
-			reason = "numeric overflow")
 	public void testDurationSubtractionWithDatetimeLiterals(SessionFactoryScope scope) {
 		scope.inTransaction(
 				session -> {
@@ -1973,8 +1969,6 @@ public void testDurationArithmeticWithParameters(SessionFactoryScope scope) {
 	}
 
 	@Test
-	@SkipForDialect( dialectClass = GaussDBDialect.class,
-			reason = "GaussDB driver does not support implicit type casting to Long or Duration.")
 	public void testIntervalDiffExpressions(SessionFactoryScope scope) {
 		scope.inTransaction(
 				session -> {

hibernate-core/src/test/java/org/hibernate/orm/test/typeoverride/TypeOverrideTest.java

@@ -7,6 +7,7 @@
 import java.sql.Types;
 
 import org.hibernate.boot.MetadataBuilder;
+import org.hibernate.community.dialect.GaussDBDialect;
 import org.hibernate.dialect.CockroachDialect;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.HANADialect;
@@ -63,6 +64,12 @@ else if ( PostgreSQLDialect.class.isInstance( dialect ) ) {
 					jdbcTypeRegistry.getDescriptor( Types.BLOB )
 			);
 		}
+		else if ( GaussDBDialect.class.isInstance( dialect ) ) {
+			assertSame(
+					BlobJdbcType.BLOB_BINDING,
+					jdbcTypeRegistry.getDescriptor( Types.BLOB )
+			);
+		}
 		else if ( SybaseDialect.class.isInstance( dialect ) ) {
 			assertSame(
 					BlobJdbcType.PRIMITIVE_ARRAY_BINDING,