Re: Shouldn't "WHEN (OLD.* IS DISTINCT FROM NEW.*)" clause be independent from data type? - Mailing list pgsql-general

Adrian Klaver <adrian.klaver@aklaver.com> writes:
> On 09/17/2015 07:34 AM, Tom Lane wrote:
>> Ah, sorry, actually what IS [NOT] DISTINCT FROM looks up is the "="
>> operator.

> So the docs should be changed?
> As they stand now:
> http://www.postgresql.org/docs/9.4/interactive/functions-comparison.html
> "For non-null inputs, IS DISTINCT FROM is the same as the <> operator. "

Well, it's an oversimplification to begin with.  Do we want to try to
cram all of these implementation details in there?

            regards, tom lane