| From: | "P(dot)J(dot) \"Josh\" Rovero" <rovero(at)sonalysts(dot)com> |
|---|---|
| To: | Holger Marzen <holger(at)marzen(dot)de> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Reuse of Subselects |
| Date: | 2004-02-17 12:42:38 |
| Message-ID: | 40320C3E.60106@sonalysts.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
temporary tables work. Save the complicated
subselect in temporary table, following
queries just simple select on temp table.
Holger Marzen wrote:
> Hi all,
>
> if I have something like this:
>
> SELECT column1,
> (... complicated subselect ...),
> column1 - (... same subselect as above ...)
> FROM table1;
>
> do I really have to rewrite the subselect a 2nd time if I need that
> result in another column's expression?
--
P. J. "Josh" Rovero Sonalysts, Inc.
Email: rovero(at)sonalysts(dot)com www.sonalysts.com 215 Parkway North
Work: (860)326-3671 or 442-4355 Waterford CT 06385
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