"George Pavlov" <gpavlov@mynewplace.com> writes:
>> From: David Fetter [mailto:david@fetter.org]
>> This case statement returns true when z factorial is zero, so I'd
>> recommend the SQL standard <> or IS NOT DISTINCT FROM instead.
> i do hate potential ambiguity... the != was something stuck in my brain
> from old sybase, i think. i always liked != ("not equals") as more
> intuitive than <> ("less than, greater than"???), but i will have to
> change my ways, especially if "the standard" says so.
The notion that != might be scanned as two operators whereas <> would
not be is nonsense. I assume David was just joking.
regards, tom lane