Re: machine-readable explain output v4

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: machine-readable explain output v4
Date: 2009-08-10 16:13:15
Message-ID: 11607.1249920795@sss.pgh.pa.us
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Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Mon, Aug 10, 2009 at 10:54 AM, Tom Lane<tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> <Filter><Expr><Text>(f1 &gt; 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 &gt; 0)</Expr></Filter>

then where do we put additional information about the expression
when the time comes?

regards, tom lane

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