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/*-------------------------------------------------------------------------
*
* tlist.h
* prototypes for tlist.c.
*
*
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/optimizer/tlist.h,v 1.49 2008/01/01 19:45:58 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef TLIST_H
#define TLIST_H
#include "nodes/relation.h"
extern TargetEntry *tlist_member(Node *node, List *targetlist);
extern TargetEntry *tlist_member_ignore_relabel(Node *node, List *targetlist);
extern List *flatten_tlist(List *tlist);
extern List *add_to_flat_tlist(List *tlist, List *vars);
extern TargetEntry *get_sortgroupref_tle(Index sortref,
List *targetList);
extern TargetEntry *get_sortgroupclause_tle(SortClause *sortClause,
List *targetList);
extern Node *get_sortgroupclause_expr(SortClause *sortClause,
List *targetList);
extern List *get_sortgrouplist_exprs(List *sortClauses,
List *targetList);
extern bool tlist_same_datatypes(List *tlist, List *colTypes, bool junkOK);
#endif /* TLIST_H */
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