private static FKConstraintDefinitionNode newFKDropNode(TableElementNode node,
String name,
Boolean isGrouping) {
try {
QueryTreeNode fkName = node.getParserContext()
.getNodeFactory()
.getNode(NodeTypes.TABLE_NAME, null, name, node.getParserContext());
return (FKConstraintDefinitionNode)node.getParserContext()
.getNodeFactory()