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Re: Dumping/Restoring with constraints?

From: Andrew Sullivan <ajs(at)commandprompt(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Dumping/Restoring with constraints?
Date: 2008-08-29 13:34:36
Message-ID: 20080829133436.GG29463@commandprompt.com (view raw or flat)
Thread:
Lists: pgsql-adminpgsql-general
On Fri, Aug 29, 2008 at 01:53:28PM +0800, Phoenix Kiula wrote:

> My database encoding on BOTH the sides is UTF8. The dumped DB is UTF8.

Are you sure?  I know people asked up-thread for the output of \l, but
I haven't seen it.  If your encoding is UTF-8, then I don't understand
how you got non-UTF-8 characters in there, unless there's some bug in
the 8.2 series of which I'm unaware.

> The one I am importing into is also UTF8. So why is it showing me this
> error? Do I also have to look at stuff like "collation"?

You shouldn't have to.  That's a constraint on sorting and such like.
It doesn't control what can get into the database.

Hmm.  I wonder if the problem is the locale you're using for pg_dump
vs. what you're using when handing the data back in.  If the locale
were different, it might be possible that your client_encoding was
different.  I have no idea if this is the case, but you might want to
try it.  Check your locale at the command line on each system.
 
> Also, how can I ensure that my dumped database on the server has only
> UTF8 data? What constraint or function can I use?

As I said before, if the database encoding is UTF-8, then it's
supposed to be _impossible_ that you get non-UTF-8 data in there.
That's the whole point of having the database encoding.

A

-- 
Andrew Sullivan
ajs(at)commandprompt(dot)com
+1 503 667 4564 x104
http://www.commandprompt.com/

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