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Drill, mail # dev - Query regarding Scalar Functions implementation

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Query regarding Scalar Functions implementation
Yash Sharma 2013-10-01, 06:06
Hi Team,
I had two  questions regarding the  implementation of  Scalar Functions.

1. What would be the Output type of Division func (given: Input types are all Integers)

Currently I have provided an implementation of the DIVISION func which has input/output params as :
        @Param  IntHolder left;
        @Param  IntHolder right;
         @Output IntHolder out;

now, the issue is the data type of output field:
output type will be integer if left & right are divisible integers, while..
output type would be decimal if left & right are non-divisible integers (i.e.  have a remainder)

So my question is,
Do I have to provide 3 overloaded methods for division with different @output types, (IntHolder, Float4Holder, Float8Holder) ?
or shall I have a  Float8 output type irrespective of the inputs?

Other functions like add/multiple & subtract won't be having this issue.. . It's only the issue with division.
2. What would be the input type for any Scalar func (given: Input types might not always be Integers).

Inputs would also be of different data types as Float4Holder & Float8Holder, so would we have to provide overloaded methods for different combinations of input types?
This would be the case with all scalar functions (+_*/).

Any Suggestions?
Yash Sharma

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Jason Altekruse 2013-10-01, 22:57
Jacques Nadeau 2013-10-02, 15:46
Harri Kinnunen 2013-10-02, 08:42
Jacques Nadeau 2013-10-02, 15:46
Julian Hyde 2013-10-02, 16:03
Yash Sharma 2013-10-02, 09:07