Re: [HACKERS] MVCC works in serialized mode!

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: vadim(at)krs(dot)ru (Vadim Mikheev)
Cc: hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] MVCC works in serialized mode!
Date: 1998-12-25 11:29:52
Message-ID: 199812251129.GAA08602@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

> >
> > 7. As I read in Sybase documentation the default
> > standard transaction mode is _chained_ - all
> > queries before explicit COMMIT/ABORT are run in _single
> > transaction_... But we have to use BEGIN/END to get it!
> > This was not so bad for system with relation level locks,
> > but now only the same row writes block one other and so
> > chained mode seems more appropriate...
> >
> > Shouldn't we change default transaction mode now?
> > And use option/SET TRANSACTION MODE to switch to
> > un-chained mode if one like it?
>
> No comments on this?
> I would like to make BEGIN implicit...
> Objections?

Informix requires BEGIN. Ingres does not, but has 'set autocommit'
mode, so each SQL statement is its own transaction, like we have now.

I always felt that if I go in to psql and run a query, I want it
applied. I don't want to have to commit every query I type.

I know I can use SET TRANSACTION MODE to change this.

What do others think?

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Tatsuo Ishii 1998-12-26 15:11:06 NetBSD/m68k port
Previous Message Bruce Momjian 1998-12-25 11:22:01 Re: [HACKERS] postgresql-6.4.1.tar.gz