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Re: [PATCHES] BUG #2221: Bad delimiters allowed in COPY ...

From: David Fetter <david(at)fetter(dot)org>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: Neil Conway <neilc(at)samurai(dot)com>, pgsql-bugs(at)postgresql(dot)org,PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [PATCHES] BUG #2221: Bad delimiters allowed in COPY ...
Date: 2006-01-30 18:15:57
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-bugspgsql-patches
On Mon, Jan 30, 2006 at 08:21:34AM -0500, Andrew Dunstan wrote:
> David Fetter wrote:
> > 
> >+ 	/* Disallow BADCHARS characters */
> >+ 	if (strcspn(cstate->delim, BADCHARS) != 1)
> >+ 		ereport(ERROR,
> >+ 				 errmsg("COPY delimiter cannot be \"%#02x\"",
> >+ 						*cstate->delim)));
> >+ 
> Is  ERRCODE_FEATURE_NOT_SUPPORTED the right errcode? This isn't a
> missing feature; we are performing a sanity check here. We can
> reasonably expect never to support CR, LF or \ as the text
> delimiter.

I guess that depends on whether we ever plan to allow people to set
the output record separator to something other than CR?LF.

> Maybe ERRCODE_INVALID_PARAMETER_VALUE ? Or maybe we need a new one.
> Also, I would probably make the format %#.02x so the result would
> look like 0x0d (for a CR).
> (I bet David never thought there would so much fuss over a handful
> of  lines of code)

Actually, I'm happy to see it's getting QA.  COPY is something that
has Consequences™ if anything goes wrong with it, so I'd rather do
best efforts up front to get it right. :)

David Fetter david(at)fetter(dot)org
phone: +1 415 235 3778

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