diff options
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index 4e0d9ca4e57..a172c5de7ab 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.180 2009/02/15 20:16:21 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.181 2009/03/10 20:58:26 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -523,6 +523,13 @@ set_subquery_pathlist(PlannerInfo *root, RelOptInfo *rel, PlannerInfo *subroot; List *pathkeys; + /* + * Must copy the Query so that planning doesn't mess up the RTE contents + * (really really need to fix the planner to not scribble on its input, + * someday). + */ + subquery = copyObject(subquery); + /* We need a workspace for keeping track of set-op type coercions */ differentTypes = (bool *) palloc0((list_length(subquery->targetList) + 1) * sizeof(bool)); |