Re: Issue with now() within a transaction in pg74.213.jdbc.jar

Kris (sorry for the second copy; forgot to cc pgsql-jdbc(at)postgresql(dot)org with
this) -

That did it. Thanks so much!!

Odd though. There seems to be a bug in the cygwin implementation of
postgres. Tim McAuley ran into the same problem I did and posted here:

http://groups.google.com/groups?q=cast+timeofday+timestamp&hl=en&lr=&ie=UTF-
8&selm=bgdif2%2414kk%241%40FreeBSD.csie.NCTU.edu.tw&rnum=5

To save you from having to follow the link - an attempt to cast TIMEOFDAY()
to TIMESTAMP in cygwin's implementation results in:

ERROR: Bad timestamp external representation 'Thu Jul 01 22:29:25.402375
2004 USMST'

Here's what I did to get around it. Perhaps someone out there has a more
elegant solution (and if so I'm all ears because I hate this hack):

SELECT CAST( SUBSTRING( TIMEOFDAY() FROM 1 FOR 31 ) AS TIMESTAMP );

It looks like the CAST problem is a cygwin-only issue.

Thanks again Kris!!

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John Pagakis
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-----Original Message-----
From: pgsql-jdbc-owner(at)postgresql(dot)org
[mailto:pgsql-jdbc-owner(at)postgresql(dot)org]On Behalf Of Kris Jurka
Sent: Thursday, July 01, 2004 4:58 PM
To: John Pagakis
Cc: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: [JDBC] Issue with now() within a transaction in
pg74.213.jdbc.jar

On Thu, 1 Jul 2004, John Pagakis wrote:

> Most of my tables have a last update date and during some testing in
> Postgres 7.4.1 I noticed that the last_update date was slightly in the
past
> for anything updated within a transaction. The amount it is off by seems
to
> vary: as little as 30 seconds; as much as a couple of minutes.
>

This is not a JDBC issue. now() always returns the time from the start of
the transaction. If you want current wall clock time use timeofday().

Kris Jurka

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