| From: | Erik Jones <ejones(at)engineyard(dot)com> |
|---|---|
| To: | David Fetter <david(at)fetter(dot)org> |
| Cc: | Waldemar Bergstreiser <littlesuspense(at)web(dot)de>, Greg Stark <gsstark(at)mit(dot)edu>, pgsql-general(at)postgresql(dot)org, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
| Subject: | Re: |
| Date: | 2009-06-30 20:28:43 |
| Message-ID: | 22EC2FD9-C3E0-4242-A4F8-58E096FA973B@engineyard.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Jun 30, 2009, at 11:25 AM, David Fetter wrote:
> On Tue, Jun 30, 2009 at 10:22:23AM -0700, Erik Jones wrote:
>>
>> postgres=# select null = null;
>> ?column?
>> ----------
>>
>> (1 row)
>
> Actually, it's NULL.
>
> shackle(at)postgres:5432=# SELECT (NULL = NULL) IS NULL;
> ?column?
> ----------
> t
> (1 row)
Er, yeah, I mispoke, my point was that it doesn't evaluate to TRUE so
the join doesn't hit a match, though...
Erik Jones, Database Administrator
Engine Yard
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866.518.9273 x 260
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