Re: [PATCH] Patch to fix a crash of psql

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: Albe Laurenz <laurenz.albe@wien.gv.at>, Tatsuo Ishii *EXTERN* <ishii@postgresql.org>, jianggq@cn.fujitsu.com, pgsql-hackers@postgresql.org
Date: 2012-11-30T15:36:06Z
Lists: pgsql-hackers
Peter Eisentraut <peter_e@gmx.net> writes:
> On 11/30/12 3:26 AM, Albe Laurenz wrote:
>> If there is no possibility for false positives, I'd say
>> that the "possible" should go.  Maybe it should even be
>> an error and no warning then.

> Yes, encoding mismatches are generally an error.

> I think the message should be more precise.  Nobody will know what an
> "encoding conflict" is.  The error condition is "last multibyte
> character ran over end of file" or something like that, which should be
> clearer.

TBH I think that a message here is unnecessary; it's sufficient to
ensure psql doesn't crash.  The backend will produce a better message
than this anyway once the data gets there, and that way we don't have to
invent a new error recovery path inside psql.  As-is, the patch just
creates the question of what to do after issuing the error.

			regards, tom lane