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/*------------------------------------------------------------------------- * * tlist.h * prototypes for tlist.c. * * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/optimizer/tlist.h * *------------------------------------------------------------------------- */ #ifndef TLIST_H #define TLIST_H #include "optimizer/var.h" extern TargetEntry *tlist_member(Node *node, List *targetlist); extern TargetEntry *tlist_member_ignore_relabel(Node *node, List *targetlist); extern TargetEntry *tlist_member_match_var(Var *var, List *targetlist); extern List *flatten_tlist(List *tlist, PVCAggregateBehavior aggbehavior, PVCPlaceHolderBehavior phbehavior); extern List *add_to_flat_tlist(List *tlist, List *exprs); extern List *get_tlist_exprs(List *tlist, bool includeJunk); extern bool tlist_same_exprs(List *tlist1, List *tlist2); extern bool tlist_same_datatypes(List *tlist, List *colTypes, bool junkOK); extern bool tlist_same_collations(List *tlist, List *colCollations, bool junkOK); extern TargetEntry *get_sortgroupref_tle(Index sortref, List *targetList); extern TargetEntry *get_sortgroupclause_tle(SortGroupClause *sgClause, List *targetList); extern Node *get_sortgroupclause_expr(SortGroupClause *sgClause, List *targetList); extern List *get_sortgrouplist_exprs(List *sgClauses, List *targetList); extern Oid *extract_grouping_ops(List *groupClause); extern AttrNumber *extract_grouping_cols(List *groupClause, List *tlist); extern bool grouping_is_sortable(List *groupClause); extern bool grouping_is_hashable(List *groupClause); #endif /* TLIST_H */