decibel <[email protected]> writes:
> On Dec 29, 2009, at 6:29 PM, Tom Lane wrote:
>> * when a tabstat message comes in, increment changes_since_analyze by
>> the sum of t_tuples_inserted + t_tuples_updated + t_tuples_deleted;
>>
>> * when an analyze report message comes in, reset changes_since_analyze
>> to zero.
> If that's being added, could we extend the concept to also keep a
> reltuples_delta column (name suggestions welcome!) that is = reltuples_delta
> + t_tuples_inserted - t_tuples_deleted, and then set reltuples_delta back to
> 0 after an analyze (or anything else that would reset reltuples)? That means
> you could use reltuples + reltuples_delta as a fairly accurate row count.
We already have a fairly accurate row count.
regards, tom lane
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