Re: Determine dead tuples size
| От | Alexey Romanchuk |
|---|---|
| Тема | Re: Determine dead tuples size |
| Дата | |
| Msg-id | 17410023575.20070316114150@swsoft.com обсуждение |
| Ответ на | Re: Determine dead tuples size (Michael Fuhr <mike@fuhr.org>) |
| Ответы |
Re: Determine dead tuples size
Re: Determine dead tuples size |
| Список | pgsql-performance |
Hello, Michael.
> On Thu, Mar 15, 2007 at 01:58:47PM +0600, Alexey Romanchuk wrote:
>> is it possible to determine dead tuples size for table?
> See contrib/pgstattuple.
thanks, i install contribs and try to analyze result of pgstattuple
function and found it strange.
Here it is output:
pgstattuple
----------------------------------------------------------------------
(233242624,1186804,206555428,88.56,20707,3380295,1.45,13896816,5.96)
When i try to sum all size (live, dead and free) the sum is not equal
total size. For this table 206555428 + 3380295 + 13896816 = 223832539.
The difference between total and sum is 9410085. It is near 5%.
Is it ok?
--
Alexey Romanchuk
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