Re: machine-readable explain output v4

Robert Haas <robertmhaas@gmail.com> writes:
> On Mon, Aug 10, 2009 at 10:54 AM, Tom Lane<tgl@sss.pgh.pa.us> wrote:
>>        <Filter><Expr><Text>(f1 > 0)</Text></Expr></Filter>
>> 
>> This would leave room to add additional properties beside the text,
>> and not break existing clients when we do it.

> Well, there you seem to be adding TWO containers, which is probably
> overkill.  I could see adding one.

Uh, no, I see one container and a property.  If we do just
       <Filter><Expr>(f1 > 0)</Expr></Filter>

then where do we put additional information about the expression
when the time comes?
        regards, tom lane