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Re: Implementing product-aggregate

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Hi again,


Am Montag, 11. März 2024, 10:16:33 CET schrieb Jan Kohnert:

> create aggregate prod(numeric) (sfunc = numeric_mul, stype = numeric)


my basic idea was creating a function


create function multiply(arg1 numeric, arg2 numeric)

    returns numeric

    language sql

    immutable

    returns null on null input

    return arg1 * arg2;


and use that function instead of the undocumented numeric_mul as the sfunc in the aggregate definition.


Then again, this seems odd, too, since we're only reimplementing basic stuff that's already there.


I'm still undecided...


--

MfG Jan


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