2009/10/27 Alvaro Herrera <alvherre@commandprompt.com>:
> JC Praud escribió:
>
>> So my question are: can the autovacuum daemon perform vacuum full ? Or
>> another internal postgres process ? Could it come from the TRUNCATE I run
>> and canceled 4 days before ?
>
> No. Autovacuum only issues commands that don't lock tables strongly. I
> doubt this has anything to do with your old TRUNCATE either. My guess
> is that somebody else ran TRUNCATE and forgot to tell you; or maybe an
> automatic external process (cron or some such).
look again on code. I checked it today. When is possible to drop some
pages from end, then vacuum do lock, and try to remove free pages. I
checked it. This process is started from full vacuum, lazy vacuum and
autovacuum too. We have similar issue like JC has.
Regards
Pavel
>
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