Re: Index not being used ?

From: Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>
To: PgSQL General ML <pgsql-general(at)postgresql(dot)org>
Subject: Re: Index not being used ?
Date: 2003-09-04 04:43:46
Message-ID: 1062650626.7342.444.camel@haggis
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On Wed, 2003-09-03 at 22:27, Tom Lane wrote:
> Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> writes:
> > Quotes and casting together are not necessary.
>
> Check.
>
> > I'd choose "lid = 457::int2" since it's telling PG what the datatype
> > is, whereas with lid = '457', PG must figure it out.
>
> I'd lean to the quotes, actually, since that way your application's
> code isn't so dependent on the particular datatypes in the table.
> I doubt there's any performance advantage to writing the cast, if
> that's what you were thinking ...

Well, yes, that's what I was thinking: minimize the code path that
the parser must take.

--
-----------------------------------------------------------------
Ron Johnson, Jr. ron(dot)l(dot)johnson(at)cox(dot)net
Jefferson, LA USA

"Basically, I got on the plane with a bomb. Basically, I tried
to ignite it. Basically, yeah, I intended to damage the plane."
RICHARD REID, tried to blow up American Airlines Flight 63

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