Re: [HACKERS] proposal sql: labeled function params

Am Thursday, 14. August 2008 schrieb Pavel Stehule:
> I propose enhance current syntax that allows to specify label for any
> function parameter:
>
> fcename(expr [as label], ...)
> fcename(colname, ...)
>
> I would to allow  same behave of custom functions like xmlforest function:
> postgres=# select xmlforest(a) from foo;
>  xmlforest
> -----------
>  <a>10</a>
> (1 row)

Do you have a use case for this outside of XML?

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