Postgres Pro
Downloads
Home   >   mailing lists

Re: Is a better way to have the same result of this - Mailing list pgsql-performance

From Andrew Sullivan
Subject Re: Is a better way to have the same result of this
Date
Msg-id 20021205185622.B29425@mail.libertyrms.com
Whole thread Raw
In response to Re: Is a better way to have the same result of this  (Jean-Luc Lachance <jllachan@nsd.ca>)
List pgsql-performance
Tree view 
On Thu, Dec 05, 2002 at 04:04:28PM -0500, Jean-Luc Lachance wrote:
> Good for you!  Too bad the parser does not know about it...

LAst I heard, there was a problem about providing a rigourous
mathematical proof that NOT EXISTS and NOT IN are really the same.
If you can prove it, I'm sure people would be pleased.

A

--
----
Andrew Sullivan                         204-4141 Yonge Street
Liberty RMS                           Toronto, Ontario Canada
<andrew@libertyrms.info>                              M2P 2A8
                                         +1 416 646 3304 x110

pgsql-performance by date:

Previous
From: Vernon Wu
Date:
Subject: Re: Is a better way to have the same result of this
Next
From: Andrew Sullivan
Date:
Subject: Re: Is a better way to have the same result of this