Tom Lane wrote:
I agree with the idea of having an option to get EXPLAIN's output in
an entirely different, more machine-readable format.  Not wedded to
XML, but I fear that a pure relational structure might be too strict ---
there's a lot of variability in the entries already.  XML also could
deal naturally with nesting, whereas we'd have to jump through hoops
to represent the plan tree structure in relational form.

I agree. XML seems like a fairly natural fit for this. Just as people should not try to shoehorn everything into XML, neither should they try to shoehorn everything into a relational format either.

Now all we need is an XML schema for it ;-)



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