public inbox for [email protected]  

help / color / mirror / Atom feed

From: Robert Treat <[email protected]>
To: [email protected]
To: Martijn van Oosterhout <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: Gregory Maxwell <[email protected]>
Cc: Gavin Sherry <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Subject: Re: Upcoming PG re-releases
Date: Sat, 10 Dec 2005 18:50:41 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>

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

view thread (55+ messages)  latest in thread

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]
  Subject: Re: Upcoming PG re-releases
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox