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Re: NULL safe equality operator
- From: Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>
- To: Michael Glaesemann <grzm(at)myrealbox(dot)com>
- Cc: Hackers <pgsql-hackers(at)postgresql(dot)org>
- Subject: Re: NULL safe equality operator
- Date: Fri, 25 Nov 2005 15:24:02 +0800
- Message-id: <4386BC12(dot)7050007(at)familyhealth(dot)com(dot)au>
when ($1 is null and $2 is not null)
or ($1 is not null and $2 is null) then 0
That's the same as: when $1 is null != $2 is null then 0 Chris
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