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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-11-14 23:54:23 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-11-14 23:54:23 +0000 |
| commit | 1bdf124b94af3c24d3c3083c820804274df8262b (patch) | |
| tree | 580185c38a9903dd1bb390d099719e781044d2de /src/backend/nodes/copyfuncs.c | |
| parent | e93fb885ebbf4ecbafe3e16813dc47397eda84ea (diff) | |
| download | postgresql-1bdf124b94af3c24d3c3083c820804274df8262b.tar.gz postgresql-1bdf124b94af3c24d3c3083c820804274df8262b.zip | |
Restore the former RestrictInfo field valid_everywhere (but invert the flag
sense and rename to "outerjoin_delayed" to more clearly reflect what it
means). I had decided that it was redundant in 8.1, but the folly of this
is exposed by a bug report from Sebastian Böck. The place where it's
needed is to prevent orindxpath.c from cherry-picking arms of an outer-join
OR clause to form a relation restriction that isn't actually legal to push
down to the relation scan level. There may be some legal cases that this
forbids optimizing, but we'd need much closer analysis to determine it.
Diffstat (limited to 'src/backend/nodes/copyfuncs.c')
| -rw-r--r-- | src/backend/nodes/copyfuncs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c index 4a90b10b277..a5efda5a30b 100644 --- a/src/backend/nodes/copyfuncs.c +++ b/src/backend/nodes/copyfuncs.c @@ -15,7 +15,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.316 2005/10/15 02:49:18 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/copyfuncs.c,v 1.317 2005/11/14 23:54:12 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1249,6 +1249,7 @@ _copyRestrictInfo(RestrictInfo *from) COPY_NODE_FIELD(clause); COPY_SCALAR_FIELD(is_pushed_down); + COPY_SCALAR_FIELD(outerjoin_delayed); COPY_SCALAR_FIELD(can_join); COPY_BITMAPSET_FIELD(clause_relids); COPY_BITMAPSET_FIELD(required_relids); |