Re: CONVERT function is seriously broken

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: CONVERT function is seriously broken
Date: 2002-11-02 04:10:14
Message-ID: 200211020410.gA24AEV12318@candle.pha.pa.us
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Tom Lane wrote:
> I have just noticed that the implementation of
> CONVERT(text USING encoding_name)
> tries to do database access during the grammar phase, viz it looks
> up the encoding_name in pg_conversion and replaces it with an OID.
>
> This is not workable; consider the situation where we are in an
> already-aborted transaction. Using a pg_conversion OID in stored rules
> isn't very acceptable either.
>
> Unfortunately, I don't see any way offhand to fix this without an
> initdb :-(.

Ooch, that hurts. How bad would it be if it was broken in 7.3?

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