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Subject: Re: please help on query
From: Hannu Krosing <hannu@tm.ee>
To: Luis Alberto Amigo Navarro <lamigo@atc.unican.es>
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On Thu, 2002-07-11 at 17:22, Luis Alberto Amigo Navarro wrote:
> I can't improve performance on this query:

You may also want to rewrite

lineitem.shipdate<(('1994-01-01')::DATE+('1 year')::INTERVAL)::DATE

into

lineitem.shipdate<(('1995-01-01')::DATE

if you can, as probably the optimiser will not recognize it else as a
constant and won't use index on lineitem.shipdate.

----------------
Hannu