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Use Snapshot in heap access methods.

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This commit is contained in:
Vadim B. Mikheev
1998-07-27 19:38:40 +00:00
parent f7f989c990
commit be8300b18f
54 changed files with 352 additions and 339 deletions
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18
src/backend/commands/remove.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/remove.c,v 1.25 1998/06/15 19:28:16 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/remove.c,v 1.26 1998/07/27 19:37:53 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -97,7 +97,7 @@ RemoveOperator(char *operatorName, /* operator name */
ObjectIdGetDatum(typeId2));
relation = heap_openr(OperatorRelationName);
scan = heap_beginscan(relation, 0, false, 3, operatorKey);
scan = heap_beginscan(relation, 0, SnapshotNow, 3, operatorKey);
tup = heap_getnext(scan, 0, &buffer);
if (HeapTupleIsValid(tup))
{
@@ -165,7 +165,7 @@ SingleOpOperatorRemove(Oid typeOid)
for (i = 0; i < 3; ++i)
{
key[0].sk_attno = attnums[i];
sdesc = heap_beginscan(rdesc, 0, false, 1, key);
sdesc = heap_beginscan(rdesc, 0, SnapshotNow, 1, key);
while (PointerIsValid(tup = heap_getnext(sdesc, 0, &buffer)))
{
ItemPointerCopy(&tup->t_ctid, &itemPointerData);
@@ -214,7 +214,7 @@ AttributeAndRelationRemove(Oid typeOid)
oidptr->next = NULL;
optr = oidptr;
rdesc = heap_openr(AttributeRelationName);
sdesc = heap_beginscan(rdesc, 0, false, 1, key);
sdesc = heap_beginscan(rdesc, 0, SnapshotNow, 1, key);
while (PointerIsValid(tup = heap_getnext(sdesc, 0, &buffer)))
{
ItemPointerCopy(&tup->t_ctid, &itemPointerData);
@@ -235,7 +235,7 @@ AttributeAndRelationRemove(Oid typeOid)
while (PointerIsValid((char *) optr->next))
{
key[0].sk_argument = (Datum) (optr++)->reloid;
sdesc = heap_beginscan(rdesc, 0, false, 1, key);
sdesc = heap_beginscan(rdesc, 0, SnapshotNow, 1, key);
tup = heap_getnext(sdesc, 0, &buffer);
if (PointerIsValid(tup))
{
@@ -285,7 +285,7 @@ RemoveType(char *typeName) /* type name to be removed */
typeKey[0].sk_argument = PointerGetDatum(typeName);
scan = heap_beginscan(relation, 0, false, 1, typeKey);
scan = heap_beginscan(relation, 0, SnapshotNow, 1, typeKey);
tup = heap_getnext(scan, 0, (Buffer *) 0);
if (!HeapTupleIsValid(tup))
{
@@ -303,7 +303,7 @@ RemoveType(char *typeName) /* type name to be removed */
shadow_type = makeArrayTypeName(typeName);
typeKey[0].sk_argument = NameGetDatum(shadow_type);
scan = heap_beginscan(relation, 0, false,
scan = heap_beginscan(relation, 0, SnapshotNow,
1, (ScanKey) typeKey);
tup = heap_getnext(scan, 0, (Buffer *) 0);
@@ -390,7 +390,7 @@ RemoveFunction(char *functionName, /* function name to be removed */
key[0].sk_nargs = key[0].sk_func.fn_nargs;
relation = heap_openr(ProcedureRelationName);
scan = heap_beginscan(relation, 0, false, 1, key);
scan = heap_beginscan(relation, 0, SnapshotNow, 1, key);
do
{ /* hope this is ok because it's indexed */
@@ -493,7 +493,7 @@ RemoveAggregate(char *aggName, char *aggType)
ObjectIdGetDatum(basetypeID));
relation = heap_openr(AggregateRelationName);
scan = heap_beginscan(relation, 0, false, 2, aggregateKey);
scan = heap_beginscan(relation, 0, SnapshotNow, 2, aggregateKey);
tup = heap_getnext(scan, 0, (Buffer *) 0);
if (!HeapTupleIsValid(tup))
{