From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Jan Wieck <janwieck(at)Yahoo(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Thies C(dot) Arntzen" <thies(at)digicol(dot)de>, rasmus(at)php(dot)net, PostgreSQL-interfaces <pgsql-interfaces(at)postgresql(dot)org> |
Subject: | Re: Re: PostgreSQL and PHP persistent connections |
Date: | 2001-02-08 14:18:25 |
Message-ID: | 200102081418.JAA16051@candle.pha.pa.us |
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Lists: | pgsql-interfaces pgsql-jdbc |
> > > How is that an improvement? It only changes the case in which you get
> > > a NOTICE from not-in-transaction to in-transaction ...
> >
> > Well, the most common case is that you are not in a transaction.
>
> Why not tracing PQcmdStatus(result) on the persistent
> connection? It allways returns "BEGIN", "COMMIT" or
> "ROLLBACK" for whatever you issued.
>
> Well, it'll not catch the uncommon case that someone might
> issue multiple queries in one statements (semicolon
> separated). But that's IMHO bad practice anyway and the above
> will avoid communication, context switching and eating up of
> XID's until we have silent rollback in 7.2.
It is the multi-command issue that prevented me from suggesting checking
the return status. If they are leaving an open transaction after
disconnecting, they could be doing any crazy thing.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(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
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