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Diffstat (limited to 'src/backend/optimizer/prep/prepunion.c')
| -rw-r--r-- | src/backend/optimizer/prep/prepunion.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/optimizer/prep/prepunion.c b/src/backend/optimizer/prep/prepunion.c index a1ab4daf11a..552b756b8b1 100644 --- a/src/backend/optimizer/prep/prepunion.c +++ b/src/backend/optimizer/prep/prepunion.c @@ -206,7 +206,12 @@ plan_set_operations(PlannerInfo *root) /* Add only the final path to the SETOP upperrel. */ add_path(setop_rel, path); - /* Select cheapest path (pretty easy at the moment) */ + /* Let extensions possibly add some more paths */ + if (create_upper_paths_hook) + (*create_upper_paths_hook) (root, UPPERREL_SETOP, + NULL, setop_rel); + + /* Select cheapest path */ set_cheapest(setop_rel); return setop_rel; |