Postgres Pro
Downloads
Home   >   mailing lists

visibility map and reltuples - Mailing list pgsql-hackers

From Ned T. Crigler
Subject visibility map and reltuples
Date
Msg-id 20081213225744.GA2268@xavtug.hell-city.com
Whole thread Raw
Responses Re: visibility map and reltuples  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
List pgsql-hackers
Tree view 
It appears that the visibility map patch is causing pg_class.reltuples to be
set improperly after a vacuum. For example, it is set to 0 if the map
indicated that no pages in the heap needed to be scanned.

Perhaps reltuples should not be updated unless every page was scanned during
the vacuum?

-- 
Ned T. Crigler

pgsql-hackers by date:

Previous
From: "Bramandia Ramadhana"
Date:
Subject: Re: lifetime of TubleTableSlot* returned by ExecProcNode
Next
From: Mark Mielke
Date:
Subject: Re: Sync Rep: First Thoughts on Code