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Added call to heap_endscan in IndexIsUniqueNoCache - to release 

our READ lock on pg_index and let others to create indices too !
This commit is contained in:
Vadim B. Mikheev 1997-03-27 04:13:44 +00:00
parent dd07f76658
commit b9fda39de3
1 changed files with 6 additions and 6 deletions
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12
src/backend/catalog/index.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.13 1997/03/24 07:39:47 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.14 1997/03/27 04:13:44 vadim Exp $
*
*
* INTERFACE ROUTINES
@ -1714,7 +1714,7 @@ IndexIsUnique(Oid indexId)
ObjectIdGetDatum(indexId),
0,0,0);
if(!HeapTupleIsValid(tuple)) {
elog(WARN, "Can't find index id %d in IndexIsUnique",
elog(WARN, "IndexIsUnique: can't find index id %d",
indexId);
}
index = (IndexTupleForm)GETSTRUCT(tuple);
@ -1742,7 +1742,6 @@ IndexIsUniqueNoCache(Oid indexId)
ScanKeyData skey[1];
HeapScanDesc scandesc;
HeapTuple tuple;
Buffer b;
IndexTupleForm index;
bool isunique;
@ -1755,15 +1754,16 @@ IndexIsUniqueNoCache(Oid indexId)
scandesc = heap_beginscan(pg_index, 0, SelfTimeQual, 1, skey);
tuple = heap_getnext(scandesc, 0, &b);
tuple = heap_getnext(scandesc, 0, NULL);
if(!HeapTupleIsValid(tuple)) {
elog(WARN, "Can't find index id %d in IndexIsUniqueNoCache",
elog(WARN, "IndexIsUniqueNoCache: can't find index id %d",
indexId);
}
index = (IndexTupleForm)GETSTRUCT(tuple);
Assert(index->indexrelid == indexId);
isunique = index->indisunique;
ReleaseBuffer(b);
heap_endscan (scandesc);
heap_close (pg_index);
return isunique;
}