Function get_sortgroupclause_expr

src/backend/optimizer/util/tlist.c:520–526

* get_sortgroupclause_expr * Find the targetlist entry matching the given SortGroupClause * by ressortgroupref, and return its expression. */

 *		by ressortgroupref, and return its expression.
 */
Node *
get_sortgroupclause_expr(SortGroupClause *sgClause, List *targetList)
{
	TargetEntry *tle = get_sortgroupclause_tle(sgClause, targetList);

	return (Node *) tle->expr;
}

/*
 * get_sortgrouplist_exprs