diff options
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index dbfa2c4e58e..6c4bde14213 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -10,7 +10,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.226 2007/02/22 22:00:24 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/plan/createplan.c,v 1.227 2007/02/25 17:44:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -2740,7 +2740,11 @@ make_sort_from_pathkeys(PlannerInfo *root, Plan *lefttree, List *pathkeys) * Do we need to insert a Result node? */ if (!is_projection_capable_plan(lefttree)) + { + /* copy needed so we don't modify input's tlist below */ + tlist = copyObject(tlist); lefttree = (Plan *) make_result(root, tlist, NULL, lefttree); + } /* * Add resjunk entry to input's tlist |