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: | Larry Rosenman <ler(at)lerctr(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [SQL] LIMIT 1 FOR UPDATE or FOR UPDATE LIMIT 1? |
Date: | 2002-08-28 14:41:16 |
Message-ID: | 200208281441.g7SEfGE15627@candle.pha.pa.us |
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Lists: | pgsql-hackers pgsql-sql |
OK, applied with documenation updates showing only the new syntax.
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Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Larry Rosenman wrote:
> >> Why? If both old and new are acceptable, why not document it?
> >> (Just curious, I'm not wedded to it).
>
> > Well, showing both versions adds confusion for no good reason,
>
> Yes, particularly considering that LIMIT ... FOR UPDATE corresponds
> to the implementation behavior (LIMIT acts before FOR UPDATE) while
> FOR UPDATE ... LIMIT does not.
>
> I concur with documenting only the preferred form (though there should
> be a note in gram.y explaining that we're supporting the old syntax
> for backward compatibility).
>
> regards, tom lane
>
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