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  2. MIDRANGE-L
  3. May 2019

UDF bad performance

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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