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Re: Understanding setof

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On 04/04/2014 20:42, Robert James wrote:
> I'm having trouble with setof returning functions
> 
> Let's say I have function x() returning setof integers.  I want to do
> SELECT x(), but only keep the values which meet a criteria.  Something
> like: SELECT x() as xval WHERE xval = 10.
> 
> How can I do that?
> 
> In general, is there a way to "unroll" a setof into a regular query?

if you mean that you want just a normal set of rows from the function, I
think you just do this:

  select * from x() s(t) where t = 10;

Ray.


-- 
Raymond O'Donnell :: Galway :: Ireland
rod@xxxxxx


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