Re: SET autocommit begins transaction?
От | Bruce Momjian |
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Тема | Re: SET autocommit begins transaction? |
Дата | |
Msg-id | 200209290131.g8T1V9P04122@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: SET autocommit begins transaction? (Sean Chittenden <sean@chittenden.org>) |
Ответы |
Re: SET autocommit begins transaction?
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Список | pgsql-bugs |
Sean Chittenden wrote: > > > > > But it seems so illogical that SET doesn't start a transaction, but > > > > > if it is in a transaction, it is rolled back, and this doesn't help > > > > > our statement_timeout example except to require that they do BEGIN > > > > > to start the transaction even when autocommit is off. > > > > > > > > Really? To me that makes perfect sense. Logic: > > > > > > > > *) Only BEGIN starts a transaction > > > > > > I think the above item is the issue. Everything is clear with > > > autocommit on. With autocommit off, COMMIT/ROLLBACK starts a > > > transaction, not BEGIN. BEGIN _can_ start a transaction, but it isn't > > > required: > > > > AFAICT, according to spec, commit/rollback does not start a > > transaction, the transcation is started with the first transaction > > initiating statement when there isn't a current transaction. And, > > most of the SQL92 commands that start with SET fall into the > > category of commands that do not initiate transactions. > > Was there any resolution to this or are SET's still starting a new > transaction? I haven't seen any commits re: this, iirc. -sc It is still an open item, but I think there was agreement that SET will not start a transaction, and we will document that. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 P O S T G R E S Q L 7 . 3 O P E N I T E M S Current at ftp://momjian.postgresql.org/pub/postgresql/open_items. Source Code Changes ------------------- Schema handling - ready? interfaces? client apps? Drop column handling - ready for all clients, apps? Fix BeOS, QNX4 ports Fix AIX large file compile failure of 2002-09-11 (Andreas) Get bison upgrade on postgresql.org for ecpg only (Marc) Fix vacuum btree bug (Tom) Fix client apps for autocommit = off Change log_min_error_statement to be off by default (Gavin) Fix return tuple counts/oid/tag for rules Add schema dump option to pg_dump Make SET not start a transaction with autocommit off, document it Remove GRANT EXECUTE to all /contrib functions? On Going -------- Security audit Documentation Changes --------------------- Document need to add permissions to loaded functions and languages Move documation to gborg for moved projects
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