diff options
Diffstat (limited to 'src/include/optimizer/clauses.h')
| -rw-r--r-- | src/include/optimizer/clauses.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/include/optimizer/clauses.h b/src/include/optimizer/clauses.h index 3623aade6a7..f4e668bef30 100644 --- a/src/include/optimizer/clauses.h +++ b/src/include/optimizer/clauses.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/optimizer/clauses.h,v 1.95 2008/10/09 19:27:40 tgl Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/clauses.h,v 1.96 2008/12/28 18:54:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -27,6 +27,13 @@ typedef struct Size transitionSpace; /* for pass-by-ref transition data */ } AggClauseCounts; +typedef struct +{ + int numWindowFuncs; /* total number of WindowFuncs found */ + Index maxWinRef; /* windowFuncs[] is indexed 0 .. maxWinRef */ + List **windowFuncs; /* lists of WindowFuncs for each winref */ +} WindowFuncLists; + extern Expr *make_opclause(Oid opno, Oid opresulttype, bool opretset, Expr *leftop, Expr *rightop); @@ -47,8 +54,12 @@ extern Expr *make_ands_explicit(List *andclauses); extern List *make_ands_implicit(Expr *clause); extern bool contain_agg_clause(Node *clause); +extern List *pull_agg_clause(Node *clause); extern void count_agg_clauses(Node *clause, AggClauseCounts *counts); +extern bool contain_window_function(Node *clause); +extern WindowFuncLists *find_window_functions(Node *clause, Index maxWinRef); + extern double expression_returns_set_rows(Node *clause); extern bool contain_subplans(Node *clause); |