diff options
Diffstat (limited to 'src/backend/optimizer')
| -rw-r--r-- | src/backend/optimizer/util/plancat.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/backend/optimizer/util/plancat.c b/src/backend/optimizer/util/plancat.c index 9150f1d936f..e52943a675e 100644 --- a/src/backend/optimizer/util/plancat.c +++ b/src/backend/optimizer/util/plancat.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.131 2007/01/09 02:14:13 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/util/plancat.c,v 1.132 2007/01/20 23:13:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -190,8 +190,10 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent, /* * Fetch the ordering operators associated with the index, if any. + * We expect that all ordering-capable indexes use btree's + * strategy numbers for the ordering operators. */ - if (indexRelation->rd_am->amorderstrategy > 0) + if (indexRelation->rd_am->amcanorder) { int nstrat = indexRelation->rd_am->amstrategies; @@ -203,17 +205,17 @@ get_relation_info(PlannerInfo *root, Oid relationObjectId, bool inhparent, if (opt & INDOPTION_DESC) { - fwdstrat = indexRelation->rd_am->amdescorder; - revstrat = indexRelation->rd_am->amorderstrategy; + fwdstrat = BTGreaterStrategyNumber; + revstrat = BTLessStrategyNumber; } else { - fwdstrat = indexRelation->rd_am->amorderstrategy; - revstrat = indexRelation->rd_am->amdescorder; + fwdstrat = BTLessStrategyNumber; + revstrat = BTGreaterStrategyNumber; } /* * Index AM must have a fixed set of strategies for it - * to make sense to specify amorderstrategy, so we + * to make sense to specify amcanorder, so we * need not allow the case amstrategies == 0. */ if (fwdstrat > 0) |