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  3. May 2019

Re: UDF bad performance

Drop the UDF and do it directly in the SQL statement.

Kind regards,
Carel Teijgeler

Op 10-5-2019 om 15:29 schreef Justin Taylor:
I have this UDF that returns an integer:
BEGIN
RETURN CEILING ( LENGTH * WIDTH * HEIGHT / 166 ) ;
END

Calls to this UDF take a lot longer than I expect (about 21x longer than an index-based SELECT statement). I checked all the parameters, and the data types match verbatim so there shouldn't be any implicit conversions.

Any suggestions?


TIA


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