On Tue, Nov 10, 2015 at 11:10 AM, Jim Nasby <Jim.Nasby@bluetreble.com> wrote:
> On 7/26/15 8:40 PM, Thomas Munro wrote:
>>
>> I wonder if it might be worth adding a tiny note to the manual to
>> point out that the special logic for "<row-valued-expression> IS [ NOT
>> ] NULL" doesn't apply anywhere else that we handle nulls or talk about
>> [non]-null values in the manual. See attached.
>
> Yes. This is a common point of confusion.
Agreed. But I actually don't know whether Thomas's proposed language
matches the actual behavior in every case.
--
Robert Haas
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