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Enable pg_statistic cache use.

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This commit is contained in:
Bruce Momjian
1999-11-25 00:15:57 +00:00
parent 8f401e8042
commit 922e53e6ea
4 changed files with 25 additions and 21 deletions
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18
src/backend/utils/adt/selfuncs.c
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@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.42 1999/11/22 17:56:30 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.43 1999/11/25 00:15:57 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -588,11 +588,6 @@ getattstatistics(Oid relid, AttrNumber attnum, Oid typid, int32 typmod,
Datum *hival)
{
Relation rel;
HeapScanDesc scan;
static ScanKeyData key[2] = {
{0, Anum_pg_statistic_starelid, F_OIDEQ, {0, 0, F_OIDEQ}},
{0, Anum_pg_statistic_staattnum, F_INT2EQ, {0, 0, F_INT2EQ}}
};
bool isnull;
HeapTuple tuple;
HeapTuple typeTuple;
@ -600,15 +595,13 @@ getattstatistics(Oid relid, AttrNumber attnum, Oid typid, int32 typmod,
rel = heap_openr(StatisticRelationName, AccessShareLock);
key[0].sk_argument = ObjectIdGetDatum(relid);
key[1].sk_argument = Int16GetDatum((int16) attnum);
scan = heap_beginscan(rel, 0, SnapshotNow, 2, key);
tuple = heap_getnext(scan, 0);
tuple = SearchSysCacheTuple(STATRELID,
ObjectIdGetDatum(relid),
Int16GetDatum((int16) attnum),
0, 0); /* staop is currently 0 */
if (!HeapTupleIsValid(tuple))
{
/* no such stats entry */
heap_endscan(scan);
heap_close(rel, AccessShareLock);
return false;
}
@ -693,7 +686,6 @@ getattstatistics(Oid relid, AttrNumber attnum, Oid typid, int32 typmod,
}
}
heap_endscan(scan);
heap_close(rel, AccessShareLock);
return true;
}