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postgres/src/include/optimizer/tlist.h

37 lines
1.2 KiB

/*-------------------------------------------------------------------------
*
* tlist.h
* prototypes for tlist.c.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: tlist.h,v 1.21 1999/08/21 03:49:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef TLIST_H
#define TLIST_H
#include "nodes/relation.h"
extern TargetEntry *tlistentry_member(Var *var, List *targetlist);
extern Expr *matching_tlist_var(Var *var, List *targetlist);
extern void add_var_to_tlist(RelOptInfo *rel, Var *var);
extern TargetEntry *create_tl_element(Var *var, int resdomno);
extern List *get_actual_tlist(List *tlist);
extern Resdom *tlist_member(Var *var, List *tlist);
extern TargetEntry *match_varid(Var *test_var, List *tlist);
extern List *new_unsorted_tlist(List *targetlist);
extern List *copy_vars(List *target, List *source);
extern List *flatten_tlist(List *tlist);
extern List *add_to_flat_tlist(List *tlist, List *vars);
extern List *unflatten_tlist(List *full_tlist,
List *flat_tlist);
extern Var *get_expr(TargetEntry *tle);
extern Node *get_sortgroupclause_expr(SortClause *sortClause,
List *targetList);
#endif /* TLIST_H */