Andres Freund <andres@anarazel.de> writes: > On 2017-01-24 21:32:56 -0300, Alvaro Herrera wrote: >> XMLTABLE is specified by the standard to return multiple rows ... but >> then as far as my reading goes, it is only supposed to be supported in >> the range table (FROM clause) not in the target list. I wonder if >> this would end up better if we only tried to support it in RT. I asked >> Pavel to implement it like that a few weeks ago, but ...
> Right - it makes sense in the FROM list - but then it should be an > executor node, instead of some expression thingy.
+1 --- we're out of the business of having simple expressions that return rowsets.
If we do decision so this kind of function will have different behave than other SRF functions, then I remove support for this.
There are not technical reasons (maybe I don't see it) - last Andres changes do well support for my code.