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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Lists: | pgsql-general |
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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