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 8187ab37d5b..94c8b6cba6a 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 1.168.2.3 2008/11/11 18:13:43 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.168.2.4 2009/03/10 20:58:41 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -478,6 +478,13 @@ 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)); |