| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Gordon Shannon <gordo169(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Surprising dead_tuple_count from pgstattuple |
| Date: | 2010-08-09 18:29:16 |
| Message-ID: | AANLkTi=FHtpXd3abL402_1sPM=NaiYxLgA_6mv8VAdyY@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Aug 9, 2010 at 2:23 PM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> On 09/08/10 21:21, Robert Haas wrote:
>>
>> On Mon, Aug 9, 2010 at 1:50 PM, Simon Riggs<simon(at)2ndquadrant(dot)com> wrote:
>>>
>>> Any SQL statement that reads a block can do HOT pruning, if the block is
>>> otherwise unlocked.
>>
>> Where does heap_page_prune() get called from in the DELETE path?
>
> heapgetpage()
Ah, OK.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company
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