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Commit53ebb22

Browse files
author
Hiroshi Inoue
committed
Change LockClassinfoForUpdate() to retry mark4update() in case
the tuple is already uodated. (If LockClassinfoForUpdate() isthought to be useful).
1 parent5322bf4 commit53ebb22

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1 file changed

+21
-11
lines changed

1 file changed

+21
-11
lines changed

‎src/backend/catalog/index.c

Lines changed: 21 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.133 2000/12/22 23:12:03 tgl Exp $
11+
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.134 2001/01/18 04:01:42 inoue Exp $
1212
*
1313
*
1414
* INTERFACE ROUTINES
@@ -1348,15 +1348,26 @@ LockClassinfoForUpdate(Oid relid, HeapTuple rtup,
13481348
rtup->t_self=classTuple->t_self;
13491349
ReleaseSysCache(classTuple);
13501350

1351-
test=heap_mark4update(relationRelation,rtup,buffer);
1352-
switch (test)
1351+
while (1)
13531352
{
1354-
caseHeapTupleSelfUpdated:
1355-
caseHeapTupleMayBeUpdated:
1356-
break;
1357-
default:
1358-
elog(ERROR,"LockStatsForUpdate couldn't lock relid %u",relid);
1359-
return false;
1353+
ItemPointerDatatidsave;
1354+
1355+
ItemPointerCopy(&(rtup->t_self),&tidsave);
1356+
test=heap_mark4update(relationRelation,rtup,buffer);
1357+
switch (test)
1358+
{
1359+
caseHeapTupleSelfUpdated:
1360+
caseHeapTupleMayBeUpdated:
1361+
break;
1362+
caseHeapTupleUpdated:
1363+
ReleaseBuffer(*buffer);
1364+
if (!ItemPointerEquals(&(rtup->t_self),&tidsave))
1365+
continue;
1366+
default:
1367+
elog(ERROR,"LockClassinfoForUpdate couldn't lock relid %u",relid);
1368+
return false;
1369+
}
1370+
break;
13601371
}
13611372
RelationInvalidateHeapTuple(relationRelation,rtup);
13621373
if (confirmCommitted)
@@ -1634,8 +1645,7 @@ UpdateStats(Oid relid, long reltuples)
16341645
#ifdefOLD_FILE_NAMING
16351646
in_place_upd= (IsReindexProcessing()||IsBootstrapProcessingMode());
16361647
#else
1637-
in_place_upd= (IsIgnoringSystemIndexes()|| (IsReindexProcessing()&&
1638-
relid==RelOid_pg_class));
1648+
in_place_upd= (IsIgnoringSystemIndexes()||IsReindexProcessing());
16391649
#endif/* OLD_FILE_NAMING */
16401650

16411651
if (!in_place_upd)

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