diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-12 21:31:02 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-12 21:31:02 +0000 |
| commit | f18c57fdf1dd255cc26c4b6b3d6716c8a54ab890 (patch) | |
| tree | b1f24719d0c4d25579aeb07ce141aa292873c2f4 /src/include | |
| parent | 0afabecbfdcbcd79c13f150daf180334f6db4b27 (diff) | |
Fix planner to do the right thing when a degenerate outer join (one whose
joinclause doesn't use any outer-side vars) requires a "bushy" plan to be
created. The normal heuristic to avoid joins with no joinclause has to be
overridden in that case. Problem is new in 8.2; before that we forced the
outer join order anyway. Per example from Teodor.
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/optimizer/joininfo.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/include/optimizer/joininfo.h b/src/include/optimizer/joininfo.h index 7c4909ec1c2..1480f77835a 100644 --- a/src/include/optimizer/joininfo.h +++ b/src/include/optimizer/joininfo.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/optimizer/joininfo.h,v 1.31 2006/03/05 15:58:57 momjian Exp $ + * $PostgreSQL: pgsql/src/include/optimizer/joininfo.h,v 1.32 2006/12/12 21:31:02 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -17,7 +17,8 @@ #include "nodes/relation.h" -extern bool have_relevant_joinclause(RelOptInfo *rel1, RelOptInfo *rel2); +extern bool have_relevant_joinclause(PlannerInfo *root, + RelOptInfo *rel1, RelOptInfo *rel2); extern void add_join_clause_to_rels(PlannerInfo *root, RestrictInfo *restrictinfo, |