HHH-18302 DB2CallableStatementSupport uses an invalid syntax for named parameters

Author: dreab8

hibernate-core/src/main/java/org/hibernate/dialect/DB2Dialect.java

@@ -857,6 +857,11 @@ public Boolean supportsRefCursors() {
 		return false;
 	}
 
+	@Override
+	public boolean supportsNamedParameters(DatabaseMetaData databaseMetaData) throws SQLException {
+		return false;
+	}
+
 	@Override
 	public int registerResultSetOutParameter(CallableStatement statement, int col) throws SQLException {
 		statement.registerOutParameter( col++, Types.REF_CURSOR );

hibernate-core/src/main/java/org/hibernate/procedure/internal/DB2CallableStatementSupport.java

@@ -85,7 +85,7 @@ public JdbcOperationQueryCall interpretCall(ProcedureCallImplementor<?> procedur
 						procedureCall
 				);
 				if ( parameter.getName() != null ) {
-					buffer.append( ':' ).append( parameter.getName() );
+					buffer.append( parameter.getName() ).append( " => ?" );
 				}
 				else {
 					buffer.append( "?" );