Re: [HACKERS] destroydb doesn't close connection with client (httpd <-> pg)

From: Edmund Mergl <E(dot)Mergl(at)bawue(dot)de>
To: Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>
Cc: hackers(at)postgreSQL(dot)org
Subject: Re: [HACKERS] destroydb doesn't close connection with client (httpd <-> pg)
Date: 1999-06-12 19:46:45
Message-ID: 3762B925.339A6581@bawue.de
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Oleg Bartunov wrote:
>
> I have Web site where I use persistent connection between
> httpd (Apache) and database (postgres,6.5). I noticed strange
> results I got after reloading page with results from query
> when I destroydb , createdb, fill db ( with the same data ).
> It seems backend doesn't close connection when db is destroyed
> and this produces unpredictable results. My application is
> written in Perl and uses DBI/DBD for persistent connection.
> I don't know is it DBI/DBD problem or backend must close
> all connections to DB when it destroyed.
>
> Regards,
> Oleg
> _____________________________________________________________
> Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
> Sternberg Astronomical Institute, Moscow University (Russia)
> Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
> phone: +007(095)939-16-83, +007(095)939-23-83

This is not DBI/DBD-Pg specific.

A short test with psql shows, that this seems to be
a bug of postgresql itself.

Create and fill a database. Connect to this database with psql
and perform some query. Without disconnecting destroy and re-create
the database but insert this time different data. Performing
the same query a second time will retrieve the same data as before

Edmund

--
Edmund Mergl mailto:E(dot)Mergl(at)bawue(dot)de
Im Haldenhau 9 http://www.bawue.de/~mergl
70565 Stuttgart fon: +49 711 747503
Germany

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