Re: pg_stats queries versus per-database encodings

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pg_stats queries versus per-database encodings
Date: 2009-01-22 01:29:37
Message-ID: 200901220129.n0M1Tbe06819@momjian.us
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Tom Lane wrote:
> Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> writes:
> > Tom Lane wrote:
> >> We could attack this by including source database's encoding in the
> >> shared-memory entries, and performing a conversion on the fly when
> >> reading out the data. However, what happens if the conversion fails?
>
> > The most useful behavior would be to replace the untranslatable
> > characters with "?". I'm not sure how invasive the changes to the
> > conversion functions would be to support that.
>
> I agree, but it looks like fairly massive changes would be needed,
> starting with redefining the API for conversion functions to add
> an error/noerror boolean. Not something that I care to tackle
> right now. Maybe we shall just have to live with it for another
> release.

Added to TODO:

Have pg_stat_activity display query strings in the correct client
encoding

* http://archives.postgresql.org/pgsql-hackers/2009-01/msg00131.php

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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