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It will be applied as soon as one of the PostgreSQL committers reviews
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Pavel Stehule wrote:
> Hello
> 
> this patch allows using SQL2003 syntax for set returning functions. It is 
> based on using new type of argmode - PROARGMODE_TABLE.
> 
> Proposal: http://archives.postgresql.org/pgsql-hackers/2007-02/msg00318.php
> 
> Sample:
> 
> CREATE FUNCTION foof(a int)
> RETURNS TABLE(a int, b int) AS
> $$ SELECT x, y FROM Foo WHERE x < a $$ LANGUAGE sql;
> 
> CREATE FUNCTION fooff(a int)
> RETURNS TABLE(a int, b int) AS $$
> BEGIN
>   RETURN TABLE(SELECT * FRON Foo WHERE x < a);
> END; $$ LANGUAGE plpgsql;
> 
> This patch enhance plpgsql stmt return too (table expression support).
> 
> Conformance with SQL2003:
> T326  Table functions
> 
> Description: SIGMOD Record, Vol. 33, No. 1, March 2004
> 
> Regards
> Pavel Stehule
> 
> _________________________________________________________________
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