Re: timeout implementation issues

From: Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Jan Wieck <janwieck(at)yahoo(dot)com>, Jessica Perry Hekman <jphekman(at)dynamicdiagrams(dot)com>, Barry Lind <barry(at)xythos(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: timeout implementation issues
Date: 2002-04-08 23:38:31
Message-ID: 3CB229F7.C4716E31@tpf.co.jp
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Bruce Momjian wrote:
>
> Hiroshi Inoue wrote:
> > > -----Original Message-----
> > > From: Bruce Momjian [mailto:pgman(at)candle(dot)pha(dot)pa(dot)us]
> > > >
> > > > OK using your example, one by one
> > > >
> > > > BEGIN WORK;
> > > > SET query_timeout=20;
> > > > query fails;
> > > > SET query_timeout=0;
> > > >
> > > > For what the SET was issued ?
> > > > What command is issued if the query was successful ?
> > > >
> > > > COMMIT WORK;
> > >
> > > Here, SET should only to the query labeled "query fails".
> >
> > Why should the SET query_timeout = 0 command be issued
> > only when the query failed ? Is it a JDBC driver's requirement
> > or some applications' requirements which uses the JDBC driver ?
>
> They want the timeout for only the one statement, so they have to set it
> to non-zero before the statement, and to zero after the statement.

Does setQueryTimeout() issue a corresponding SET QUERY_TIMEOUT
command immediately in the scenario ?

regards,
Hiroshi Inoue

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