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Repair RI trigger visibility problems (this time for sure ;-)) per recent

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discussion on pgsql-hackers: in READ COMMITTED mode we just have to force
a QuerySnapshot update in the trigger, but in SERIALIZABLE mode we have
to run the scan under a current snapshot and then complain if any rows
would be updated/deleted that are not visible in the transaction snapshot.
This commit is contained in:
Tom Lane
2003-10-01 21:30:53 +00:00
parent 6099bc03f3
commit 55d85f42a8
15 changed files with 210 additions and 84 deletions
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6
src/include/access/heapam.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: heapam.h,v 1.84 2003/09/15 23:33:43 tgl Exp $
* $Id: heapam.h,v 1.85 2003/10/01 21:30:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -155,9 +155,9 @@ extern void setLastTid(const ItemPointer tid);
extern Oid heap_insert(Relation relation, HeapTuple tup, CommandId cid);
extern int heap_delete(Relation relation, ItemPointer tid, ItemPointer ctid,
CommandId cid, bool wait);
CommandId cid, Snapshot crosscheck, bool wait);
extern int heap_update(Relation relation, ItemPointer otid, HeapTuple tup,
ItemPointer ctid, CommandId cid, bool wait);
ItemPointer ctid, CommandId cid, Snapshot crosscheck, bool wait);
extern int heap_mark4update(Relation relation, HeapTuple tup,
Buffer *userbuf, CommandId cid);