Horton

Re: timeout implementation issues

Bruce Momjian <pgman@candle.pha.pa.us>

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From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Hiroshi Inoue <Inoue@tpf.co.jp>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Jan Wieck <janwieck@yahoo.com>, Jessica Perry Hekman <jphekman@dynamicdiagrams.com>, Barry Lind <barry@xythos.com>, pgsql-hackers@postgresql.org
Date: 2002-04-09T00:35:48Z
Lists: pgsql-hackers 
Hiroshi Inoue wrote:
> > > 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 ?

Yes.  If we don't make the SET rollback-able, we have to do all sorts of
tricks in jdbc so aborted transactions get the proper SET value.

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