diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-06-15 22:51:45 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-06-15 22:51:45 +0000 |
| commit | cb02610e503957d7ed9b4375537fb6275c16f1fa (patch) | |
| tree | 540391048748403dc597c35b4cb662d2d4cc3494 /src/include/optimizer | |
| parent | 3fb6f1347ffbfcbba48b37ea35925f6b19821bf6 (diff) | |
Adjust nestloop-with-inner-indexscan plan generation so that we catch
some cases of redundant clauses that were formerly not caught. We have
to special-case this because the clauses involved never get attached to
the same join restrictlist and so the existing logic does not notice
that they are redundant.
Diffstat (limited to 'src/include/optimizer')
| -rw-r--r-- | src/include/optimizer/restrictinfo.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/include/optimizer/restrictinfo.h b/src/include/optimizer/restrictinfo.h index 997d4ab8c52..19c3435c3e5 100644 --- a/src/include/optimizer/restrictinfo.h +++ b/src/include/optimizer/restrictinfo.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: restrictinfo.h,v 1.16 2002/11/24 21:52:15 tgl Exp $ + * $Id: restrictinfo.h,v 1.17 2003/06/15 22:51:45 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -23,5 +23,9 @@ extern void get_actual_join_clauses(List *restrictinfo_list, extern List *remove_redundant_join_clauses(Query *root, List *restrictinfo_list, JoinType jointype); +extern List *select_nonredundant_join_clauses(Query *root, + List *restrictinfo_list, + List *reference_list, + JoinType jointype); #endif /* RESTRICTINFO_H */ |