Re: BUG #5028: CASE returns ELSE value always when type is "char"

"Kevin Grittner" <Kevin.Grittner@wicourts.gov> writes:
> Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Joseph Shraibman <jks@selectacast.net> writes:
>>> So the type of what is in the ELSE clause determines the type of
>>> the output?
>>
>> If all the other branches are unknown literals, yes.

> What's the best place to look to get a handle on what the benefits are
> of treating character string literals as being of unknown type?
> (Other than the obvious backward compatibility issues.)

I think the odds of changing that are not measurably different from
zero.

            regards, tom lane