Alex Goncharov <> schrieb:

>,--- You/Andres (Fri, 7 Oct 2011 02:28:30 +0200) ----*
>| >  a lot of cases where the database could deduce (quite easily) that
>| >  result column cannot be null
>| Could you quickly explain what exactly you want that information for?
>| because it has been done before doesn't necessarily mean its a good
>I am not writing a database application here (i.e. I am not storing
>the data).  I am responding to a client requirement, basically:
>  Given a SELECT (or possibly, simpler, a table name), tell me which
>  columns are non-nullable?
That doesnt explain why it's  needed. To get community buyin into a feature the 
community - or at least parts of it - need to understand why its needed.

Greetings, Andres

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