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Don't grab in additional locks cstore code when truncating

merge-cstore-pykello
Hadi Moshayedi 2020-11-09 23:23:50 -08:00
parent 5420dd6832
commit f6279751e4
1 changed files with 11 additions and 1 deletions
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12
src/backend/columnar/cstore_fdw.c
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@ -718,7 +718,7 @@ FindCStoreTables(List *tableList)
foreach(relationCell, tableList)
{
RangeVar *rangeVar = (RangeVar *) lfirst(relationCell);
Oid relationId = RangeVarGetRelid(rangeVar, AccessShareLock, true);
Oid relationId = RangeVarGetRelid(rangeVar, NoLock, true);
if (IsCStoreFdwTable(relationId) && !DistributedTable(relationId))
{
cstoreTableList = lappend(cstoreTableList, rangeVar);
@ -758,6 +758,16 @@ OpenRelationsForTruncate(List *cstoreTableList)
{
heap_close(relation, AccessExclusiveLock);
}
/*
* Type of cstore tables can change since we checked last time,
* since we didn't hold a lock when checking.
*/
else if (!IsCStoreFdwTable(relationId))
{
ereport(ERROR, (errmsg("relation \"%s\" not columnar anymore",
RelationGetRelationName(relation)),
errhint("try repeating the truncate command")));
}
else
{
relationIdList = lappend_oid(relationIdList, relationId);