1 /*-------------------------------------------------------------------------
4 * prototypes for tlist.c.
7 * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * src/include/optimizer/tlist.h
12 *-------------------------------------------------------------------------
17 #include "optimizer/var.h"
20 extern TargetEntry *tlist_member(Node *node, List *targetlist);
21 extern TargetEntry *tlist_member_ignore_relabel(Node *node, List *targetlist);
22 extern TargetEntry *tlist_member_match_var(Var *var, List *targetlist);
24 extern List *flatten_tlist(List *tlist, PVCAggregateBehavior aggbehavior,
25 PVCPlaceHolderBehavior phbehavior);
26 extern List *add_to_flat_tlist(List *tlist, List *exprs);
28 extern List *get_tlist_exprs(List *tlist, bool includeJunk);
30 extern bool tlist_same_exprs(List *tlist1, List *tlist2);
32 extern bool tlist_same_datatypes(List *tlist, List *colTypes, bool junkOK);
33 extern bool tlist_same_collations(List *tlist, List *colCollations, bool junkOK);
35 extern TargetEntry *get_sortgroupref_tle(Index sortref,
37 extern TargetEntry *get_sortgroupclause_tle(SortGroupClause *sgClause,
39 extern Node *get_sortgroupclause_expr(SortGroupClause *sgClause,
41 extern List *get_sortgrouplist_exprs(List *sgClauses,
44 extern Oid *extract_grouping_ops(List *groupClause);
45 extern AttrNumber *extract_grouping_cols(List *groupClause, List *tlist);
46 extern bool grouping_is_sortable(List *groupClause);
47 extern bool grouping_is_hashable(List *groupClause);