diff options
Diffstat (limited to 'src/backend/executor/execAmi.c')
| -rw-r--r-- | src/backend/executor/execAmi.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/src/backend/executor/execAmi.c b/src/backend/executor/execAmi.c index ada54a102d8..35864c16813 100644 --- a/src/backend/executor/execAmi.c +++ b/src/backend/executor/execAmi.c @@ -12,6 +12,7 @@ */ #include "postgres.h" +#include "access/amapi.h" #include "access/htup_details.h" #include "executor/execdebug.h" #include "executor/nodeAgg.h" @@ -542,9 +543,8 @@ IndexSupportsBackwardScan(Oid indexid) { bool result; HeapTuple ht_idxrel; - HeapTuple ht_am; Form_pg_class idxrelrec; - Form_pg_am amrec; + IndexAmRoutine *amroutine; /* Fetch the pg_class tuple of the index relation */ ht_idxrel = SearchSysCache1(RELOID, ObjectIdGetDatum(indexid)); @@ -552,17 +552,13 @@ IndexSupportsBackwardScan(Oid indexid) elog(ERROR, "cache lookup failed for relation %u", indexid); idxrelrec = (Form_pg_class) GETSTRUCT(ht_idxrel); - /* Fetch the pg_am tuple of the index' access method */ - ht_am = SearchSysCache1(AMOID, ObjectIdGetDatum(idxrelrec->relam)); - if (!HeapTupleIsValid(ht_am)) - elog(ERROR, "cache lookup failed for access method %u", - idxrelrec->relam); - amrec = (Form_pg_am) GETSTRUCT(ht_am); + /* Fetch the index AM's API struct */ + amroutine = GetIndexAmRoutineByAmId(idxrelrec->relam); - result = amrec->amcanbackward; + result = amroutine->amcanbackward; + pfree(amroutine); ReleaseSysCache(ht_idxrel); - ReleaseSysCache(ht_am); return result; } |