diff options
Diffstat (limited to 'src/include/optimizer/xfunc.h')
| -rw-r--r-- | src/include/optimizer/xfunc.h | 81 |
1 files changed, 43 insertions, 38 deletions
diff --git a/src/include/optimizer/xfunc.h b/src/include/optimizer/xfunc.h index a1715bb544c..a608771effb 100644 --- a/src/include/optimizer/xfunc.h +++ b/src/include/optimizer/xfunc.h @@ -1,12 +1,12 @@ /*------------------------------------------------------------------------- * * xfunc.h-- - * prototypes for xfunc.c and predmig.c. + * prototypes for xfunc.c and predmig.c. * * * Copyright (c) 1994, Regents of the University of California * - * $Id: xfunc.h,v 1.2 1996/11/06 07:44:13 scrappy Exp $ + * $Id: xfunc.h,v 1.3 1997/09/07 04:59:26 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -17,19 +17,21 @@ #include <nodes/relation.h> /* command line arg flags */ -#define XFUNC_OFF -1 /* do no optimization of expensive preds */ -#define XFUNC_NOR 2 /* do no optimization of OR clauses */ -#define XFUNC_NOPULL 4 /* never pull restrictions above joins */ -#define XFUNC_NOPM 8 /* don't do predicate migration */ -#define XFUNC_WAIT 16 /* don't do pullup until predicate migration */ -#define XFUNC_PULLALL 32 /* pull all expensive restrictions up, always */ +#define XFUNC_OFF -1 /* do no optimization of expensive preds */ +#define XFUNC_NOR 2 /* do no optimization of OR clauses */ +#define XFUNC_NOPULL 4 /* never pull restrictions above joins */ +#define XFUNC_NOPM 8 /* don't do predicate migration */ +#define XFUNC_WAIT 16 /* don't do pullup until predicate + * migration */ +#define XFUNC_PULLALL 32 /* pull all expensive restrictions up, + * always */ /* constants for local and join predicates */ #define XFUNC_LOCPRD 1 #define XFUNC_JOINPRD 2 #define XFUNC_UNKNOWN 0 -extern int XfuncMode; /* defined in tcop/postgres.c */ +extern int XfuncMode; /* defined in tcop/postgres.c */ /* defaults for function attributes used for expensive function calculations */ #define BYTE_PCT 100 @@ -47,39 +49,42 @@ extern int XfuncMode; /* defined in tcop/postgres.c */ #define is_join(pathnode) (length(get_relids(get_parent(pathnode))) > 1 ? 1 : 0) /* function prototypes from planner/path/xfunc.c */ -extern void xfunc_trypullup(Rel *rel); -extern int xfunc_shouldpull(Path *childpath, JoinPath *parentpath, - int whichchild, CInfo *maxcinfopt); -extern CInfo *xfunc_pullup(Path *childpath, JoinPath *parentpath, CInfo *cinfo, - int whichchild, int clausetype); -extern Cost xfunc_rank(Expr *clause); -extern Cost xfunc_expense(Query* queryInfo, Expr *clause); -extern Cost xfunc_join_expense(JoinPath *path, int whichchild); -extern Cost xfunc_local_expense(Expr *clause); -extern Cost xfunc_func_expense(Expr *node, List *args); -extern int xfunc_width(Expr *clause); +extern void xfunc_trypullup(Rel * rel); +extern int +xfunc_shouldpull(Path * childpath, JoinPath * parentpath, + int whichchild, CInfo * maxcinfopt); +extern CInfo * +xfunc_pullup(Path * childpath, JoinPath * parentpath, CInfo * cinfo, + int whichchild, int clausetype); +extern Cost xfunc_rank(Expr * clause); +extern Cost xfunc_expense(Query * queryInfo, Expr * clause); +extern Cost xfunc_join_expense(JoinPath * path, int whichchild); +extern Cost xfunc_local_expense(Expr * clause); +extern Cost xfunc_func_expense(Expr * node, List * args); +extern int xfunc_width(Expr * clause); + /* static, moved to xfunc.c */ /* extern int xfunc_card_unreferenced(Expr *clause, Relid referenced); */ -extern int xfunc_card_product(Relid relids); -extern List *xfunc_find_references(List *clause); -extern List *xfunc_primary_join(JoinPath *pathnode); -extern Cost xfunc_get_path_cost(Path *pathnode); -extern Cost xfunc_total_path_cost(JoinPath *pathnode); -extern Cost xfunc_expense_per_tuple(JoinPath *joinnode, int whichchild); -extern void xfunc_fixvars(Expr *clause, Rel *rel, int varno); -extern int xfunc_cinfo_compare(void *arg1, void *arg2); -extern int xfunc_clause_compare(void *arg1, void *arg2); -extern void xfunc_disjunct_sort(List *clause_list); -extern int xfunc_disjunct_compare(void *arg1, void *arg2); -extern int xfunc_func_width(RegProcedure funcid, List *args); -extern int xfunc_tuple_width(Relation rd); -extern int xfunc_num_join_clauses(JoinPath *path); -extern List *xfunc_LispRemove(List *foo, List *bar); -extern bool xfunc_copyrel(Rel *from, Rel **to); +extern int xfunc_card_product(Relid relids); +extern List *xfunc_find_references(List * clause); +extern List *xfunc_primary_join(JoinPath * pathnode); +extern Cost xfunc_get_path_cost(Path * pathnode); +extern Cost xfunc_total_path_cost(JoinPath * pathnode); +extern Cost xfunc_expense_per_tuple(JoinPath * joinnode, int whichchild); +extern void xfunc_fixvars(Expr * clause, Rel * rel, int varno); +extern int xfunc_cinfo_compare(void *arg1, void *arg2); +extern int xfunc_clause_compare(void *arg1, void *arg2); +extern void xfunc_disjunct_sort(List * clause_list); +extern int xfunc_disjunct_compare(void *arg1, void *arg2); +extern int xfunc_func_width(RegProcedure funcid, List * args); +extern int xfunc_tuple_width(Relation rd); +extern int xfunc_num_join_clauses(JoinPath * path); +extern List *xfunc_LispRemove(List * foo, List * bar); +extern bool xfunc_copyrel(Rel * from, Rel ** to); /* * function prototypes for path/predmig.c */ -extern bool xfunc_do_predmig(Path root); +extern bool xfunc_do_predmig(Path root); -#endif /* XFUNC_H */ +#endif /* XFUNC_H */ |