From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200512110218.jBB2I0V18560@candle.pha.pa.us>
Subject: Re: Upcoming PG re-releases
In-Reply-To: <200512101850.41863.xzilla@users.sourceforge.net>
To: Robert Treat <xzilla@users.sourceforge.net>
Date: Sat, 10 Dec 2005 21:18:00 -0500 (EST)
CC: pgsql-hackers@postgresql.org, Martijn van Oosterhout <kleptog@svana.org>,
	Gregory Maxwell <gmaxwell@gmail.com>, Gavin Sherry <swm@linuxworld.com.au>,
	Peter Eisentraut <peter_e@gmx.net>
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I don't see it asked very often, and I think our 8.1 releae note
addition (plus a mention in the 8.1.1 notes) will complete this.

---------------------------------------------------------------------------

Robert Treat wrote:
> Was thinking if someone could summarize this all it would make a really good 
> FAQ entry. 
> 
> Robert Treat
> 
> On Friday 09 December 2005 13:28, Martijn van Oosterhout wrote:
> > On Fri, Dec 09, 2005 at 12:38:21PM -0500, Bruce Momjian wrote:
> > > > This means someone who is planning on upgrading to 8.1 in two months
> > > > can use this function now to weed out the bad data before the upgrade
> > > > even starts.
> > >
> > > Oh, so you back-load it into the old database.  Interesting.  I assume
> > > to be useful you would have to write something that checked every column
> > > values in every table and database.
> >
> > Umm, yeah. I was thinking about how to do that. pl/pgsql is not the
> > best language to do that in. In any case I found a bug in the version I
> > posted and also added a function that does:
> >
> > test=# select * from db_utf8_verify();
> >  tab  | fld | location
> > ------+-----+----------
> >  tbl1 | foo | (12,3)
> > (1 row)
> >
> > It gives the table, field and ctid of any values that failed. It skips
> > pg_catalog. It's also *really* slow for long strings. Just executing it
> > on the pg_rewrite in the default installation takes forever. If someone
> > really wanted this for a large database maybe they should recode it in
> > C.
> >
> > http://svana.org/kleptog/pgsql/utf8_verify.sql
> >
> > Have a nice day,
> 
> -- 
> Robert Treat
> Build A Brighter Lamp :: Linux Apache {middleware} PostgreSQL
> 

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