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READ COMMITTED isolevel is implemented and is default now.

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This commit is contained in:
Vadim B. Mikheev
1999-01-29 09:23:17 +00:00
parent 3e2f87f3f3
commit e3a1ab764e
12 changed files with 499 additions and 128 deletions
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3
src/backend/access/heap/heapam.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.39 1998/12/15 12:45:13 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.40 1999/01/29 09:22:51 vadim Exp $
*
*
* INTERFACE ROUTINES
@@ -1373,6 +1373,7 @@ l3:
if (result != HeapTupleMayBeUpdated)
{
Assert(result == HeapTupleSelfUpdated || result == HeapTupleUpdated);
tuple->t_self = tuple->t_data->t_ctid;
LockBuffer(*buffer, BUFFER_LOCK_UNLOCK);
return result;
}

3
src/backend/access/nbtree/nbtinsert.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.32 1998/12/15 12:45:20 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.33 1999/01/29 09:22:52 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -134,6 +134,7 @@ l1:
* If this tuple is being updated by other transaction
* then we have to wait for its commit/abort.
*/
ReleaseBuffer(buffer);
if (TransactionIdIsValid(xwait))
{
if (nbuf != InvalidBuffer)

4
src/backend/access/transam/xact.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.28 1998/12/18 09:10:18 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.29 1999/01/29 09:22:53 vadim Exp $
*
* NOTES
* Transaction aborts can now occur two ways:
@@ -194,7 +194,7 @@ TransactionStateData CurrentTransactionStateData = {
TransactionState CurrentTransactionState =
&CurrentTransactionStateData;
int DefaultXactIsoLevel = XACT_SERIALIZABLE;
int DefaultXactIsoLevel = XACT_READ_COMMITTED;
int XactIsoLevel;
/* ----------------