diff options
Diffstat (limited to 'src/backend/executor/nodeIndexscan.c')
| -rw-r--r-- | src/backend/executor/nodeIndexscan.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/backend/executor/nodeIndexscan.c b/src/backend/executor/nodeIndexscan.c index bf16cb1b57e..3143bd94ec4 100644 --- a/src/backend/executor/nodeIndexscan.c +++ b/src/backend/executor/nodeIndexscan.c @@ -967,9 +967,20 @@ ExecInitIndexScan(IndexScan *node, EState *estate, int eflags) Oid orderbyop = lfirst_oid(lco); Node *orderbyexpr = (Node *) lfirst(lcx); Oid orderbyType = exprType(orderbyexpr); + Oid orderbyColl = exprCollation(orderbyexpr); + SortSupport orderbysort = &indexstate->iss_SortSupport[i]; + + /* Initialize sort support */ + orderbysort->ssup_cxt = CurrentMemoryContext; + orderbysort->ssup_collation = orderbyColl; + /* See cmp_orderbyvals() comments on NULLS LAST */ + orderbysort->ssup_nulls_first = false; + /* ssup_attno is unused here and elsewhere */ + orderbysort->ssup_attno = 0; + /* No abbreviation */ + orderbysort->abbreviate = false; + PrepareSortSupportFromOrderingOp(orderbyop, orderbysort); - PrepareSortSupportFromOrderingOp(orderbyop, - &indexstate->iss_SortSupport[i]); get_typlenbyval(orderbyType, &indexstate->iss_OrderByTypLens[i], &indexstate->iss_OrderByTypByVals[i]); |