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Re: multiple paramters in aggregate function - Mailing list pgsql-general

From Karsten Hilbert
Subject Re: multiple paramters in aggregate function
Date
Msg-id 20090820122224.GA5532@merkur.hilbert.loc
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In response to Re: multiple paramters in aggregate function  (Sim Zacks <sim@compulab.co.il>)
Responses Re: multiple paramters in aggregate function
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On Thu, Aug 20, 2009 at 10:36:37AM +0300, Sim Zacks wrote:

> In other words, I have a conversion table of all different units. If
> there is no conversion between 2 units (such as volume and area) then
> the sum returns null.

Shouldn't that return NULL IOW unknown ?

Karsten
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