_copyDeleteStmt(const DeleteStmt *from)
{
	DeleteStmt *newnode = makeNode(DeleteStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(usingClause);
	COPY_NODE_FIELD(whereClause);
	COPY_NODE_FIELD(returningList);
	COPY_NODE_FIELD(withClause);

	return newnode;
}
_copyDeleteStmt(const DeleteStmt *from)
{
	DeleteStmt *newnode = makeNode(DeleteStmt);

	COPY_NODE_FIELD(relation);
	COPY_NODE_FIELD(usingClause);
	COPY_NODE_FIELD(whereClause);
	COPY_NODE_FIELD(returningList);
	COPY_NODE_FIELD(withClause);

	return newnode;
}