Christopher Kings-Lynne <[EMAIL PROTECTED]> writes:
>> test=# select null_safe_cmp (NULL,NULL);
>> ERROR: could not determine anyarray/anyelement type because input has
>> type "unknown"
>> Same casting problem due to anyelement, of course.
> Yes - I wonder what the trick to getting around that is?
You might be able to hack it by creating a second function defined as
null_safe_cmp(unknown,unknown)
Pretty grotty of course, and I'm not sure that it comes up in the
real world as opposed to test cases.
regards, tom lane
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