From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Thomas Lockhart <thomas(at)fourpalms(dot)org> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Hackers List <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: quotes in SET grammar |
Date: | 2002-02-26 18:13:30 |
Message-ID: | 200202261813.g1QIDUc17775@candle.pha.pa.us |
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Lists: | pgsql-hackers |
Thomas Lockhart wrote:
> ...
> > I think it would be best to disallow the double-quoted form...
> > However, I'm not sure *how* to disallow it without also disallowing
> > unquoted words (since ultimately the productions reduce to ColId,
> > and the lexer output doesn't distinguish quoted and unquoted
> > identifiers).
>
> Well, that would be how to distinguish them; we could define a new
> token, say "QIDENT" to refer to quoted identifiers and leave "IDENT" for
> the unquoted ones. Then a little work in gram.y should be enough to
> finish the job.
>
> The use of IDENT in gram.y is isolated to just a few places so
> introducing QIDENT would be almost trivial afaict.
Well, we allow single-quotes, and we allow no quotes. People already
know they can quote identifiers and it only affects the case, so should
we explicitly disallow the double-quotes? I don't see why, I guess.
We certainly don't want to document the double-quotes though.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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