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00001 /*------------------------------------------------------------------------- 00002 * 00003 * tlist.h 00004 * prototypes for tlist.c. 00005 * 00006 * 00007 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group 00008 * Portions Copyright (c) 1994, Regents of the University of California 00009 * 00010 * src/include/optimizer/tlist.h 00011 * 00012 *------------------------------------------------------------------------- 00013 */ 00014 #ifndef TLIST_H 00015 #define TLIST_H 00016 00017 #include "optimizer/var.h" 00018 00019 00020 extern TargetEntry *tlist_member(Node *node, List *targetlist); 00021 extern TargetEntry *tlist_member_ignore_relabel(Node *node, List *targetlist); 00022 00023 extern List *flatten_tlist(List *tlist, PVCAggregateBehavior aggbehavior, 00024 PVCPlaceHolderBehavior phbehavior); 00025 extern List *add_to_flat_tlist(List *tlist, List *exprs); 00026 00027 extern List *get_tlist_exprs(List *tlist, bool includeJunk); 00028 00029 extern bool tlist_same_exprs(List *tlist1, List *tlist2); 00030 00031 extern bool tlist_same_datatypes(List *tlist, List *colTypes, bool junkOK); 00032 extern bool tlist_same_collations(List *tlist, List *colCollations, bool junkOK); 00033 00034 extern TargetEntry *get_sortgroupref_tle(Index sortref, 00035 List *targetList); 00036 extern TargetEntry *get_sortgroupclause_tle(SortGroupClause *sgClause, 00037 List *targetList); 00038 extern Node *get_sortgroupclause_expr(SortGroupClause *sgClause, 00039 List *targetList); 00040 extern List *get_sortgrouplist_exprs(List *sgClauses, 00041 List *targetList); 00042 00043 extern Oid *extract_grouping_ops(List *groupClause); 00044 extern AttrNumber *extract_grouping_cols(List *groupClause, List *tlist); 00045 extern bool grouping_is_sortable(List *groupClause); 00046 extern bool grouping_is_hashable(List *groupClause); 00047 00048 #endif /* TLIST_H */
1.7.1