LL
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-Original Message-
From: Paul DuBois [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 17, 2003 8:44 AM
To: Knepley, Jim
Cc: [EMAIL PROTECTED]
Subject: RE: Null-safe equal help, please
Please reply to the list so that others can follow this discussion
-Original Message-
From: Paul DuBois [mailto:[EMAIL PROTECTED]
Sent: Tuesday, December 16, 2003 5:44 PM
To: Knepley, Jim; [EMAIL PROTECTED]
Subject: Re: Null-safe equal help, please
At 15:22 -0700 12/16/03, Knepley, Jim wrote:
>>I've got a WHERE clause:
>>WHERE possi
equal help, please
At 15:22 -0700 12/16/03, Knepley, Jim wrote:
I've got a WHERE clause:
WHERE possibly_null_value IS NULL
That works fine. This null-safe equal doesn't do what I expect:
WHERE possibly_null_value <=> NULL
The manual, and my testing, shows that NULL <=> NULL evalu
At 15:22 -0700 12/16/03, Knepley, Jim wrote:
I've got a WHERE clause:
WHERE possibly_null_value IS NULL
That works fine. This null-safe equal doesn't do what I expect:
WHERE possibly_null_value <=> NULL
The manual, and my testing, shows that NULL <=> NULL evaluates to 1, so
Are you saying that this
I've got a WHERE clause:
WHERE possibly_null_value IS NULL
That works fine. This null-safe equal doesn't do what I expect:
WHERE possibly_null_value <=> NULL
The manual, and my testing, shows that NULL <=> NULL evaluates to 1, so
my now-fevered mind sees no reason the two above statements are n
