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| author | Peter Eisentraut <peter@eisentraut.org> | 2024-10-14 15:36:02 +0200 |
|---|---|---|
| committer | Peter Eisentraut <peter@eisentraut.org> | 2024-10-14 15:36:02 +0200 |
| commit | 0d2aa4d4937bb0500823edfc7d620f4e5fa45b9c (patch) | |
| tree | b5165a7924bd11544d649daac2052a649b7e6b3f /src/backend/optimizer/plan/createplan.c | |
| parent | e7d0cf42b1acb185edc947a8732843966ea3c160 (diff) | |
| download | postgresql-0d2aa4d4937bb0500823edfc7d620f4e5fa45b9c.tar.gz postgresql-0d2aa4d4937bb0500823edfc7d620f4e5fa45b9c.zip | |
Track sort direction in SortGroupClause
Functions make_pathkey_from_sortop() and transformWindowDefinitions(),
which receive a SortGroupClause, were determining the sort order
(ascending vs. descending) by comparing that structure's operator
strategy to BTLessStrategyNumber, but could just as easily have gotten
it from the SortGroupClause object, if it had such a field, so add
one. This reduces the number of places that hardcode the assumption
that the strategy refers specifically to a btree strategy, rather than
some other index AM's operators.
Author: Mark Dilger <mark.dilger@enterprisedb.com>
Discussion: https://www.postgresql.org/message-id/flat/E72EAA49-354D-4C2E-8EB9-255197F55330@enterprisedb.com
Diffstat (limited to 'src/backend/optimizer/plan/createplan.c')
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index c13586c537e..bd54a0d032d 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -1896,6 +1896,7 @@ create_unique_plan(PlannerInfo *root, UniquePath *best_path, int flags) subplan->targetlist); sortcl->eqop = eqop; sortcl->sortop = sortop; + sortcl->reverse_sort = false; sortcl->nulls_first = false; sortcl->hashable = false; /* no need to make this accurate */ sortList = lappend(sortList, sortcl); |