Re: WIP: explain analyze with 'rows' but not timing

2011/12/23 Tom Lane <tgl@sss.pgh.pa.us>:
> Tomas Vondra <tv@fuzzy.cz> writes:
>> The motivation for this patch was that collection timing data often
>> causes performance issues and in some cases it's not needed. But is this
>> true for row counts?
>
> Perhaps more to the point, is there a use case for collecting timing
> data without row counts?  I find it hard to visualize a valid reason.

yes - a searching of bad prediction

Regards

Pavel

>
>                        regards, tom lane
>
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