Re: Another small bug (pg_autovacuum) - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Another small bug (pg_autovacuum)
Date
Msg-id 200309131626.h8DGQd206637@candle.pha.pa.us
Whole thread Raw
In response to Re: Another small bug (pg_autovacuum)  ("Matthew T. O'Connor" <matthew@zeut.net>)
List pgsql-hackers

Patch applied as part of Christopher Browne's patch.

---------------------------------------------------------------------------

Matthew T. O'Connor wrote:
> On Fri, 2003-09-12 at 09:35, Bruce Momjian wrote:
> > Matthew T. O'Connor wrote:
> > > I made a patch to fix this, but in testing it I noticed that the stats
> > > system doesn't work on shared tables as I was expecting it too (as my
> > > latest patch requires it too :-). It treats instances of shared tables
> > > in separate databases as totally unique tables.  This makes it hard to
> > > know how much activity has really gone on for a shared table.
> > > 
> > > Is the behavior of the following example expected / desired?
> > 
> > I suspect is just a bug because no one noticed it before.  As I
> > understand it, the stats system is recorded per-database.  We could add
> > stuff so the global tables are only recorded in template1 or perhaps
> > record in template1 but report template1's numbers for all databases.
> 
> OK, well as we wait on the fix for the stats system, let me submit my
> patch for pg_autovacuum.  This patch assumes that the stats system will
> be fixed so that all inserts, updates and deletes performed on shared
> tables reguardless of what database those commands were executed from,
> will show up in the stats shown in each database.
> 
> Even if this the stats system isn't fixed, this patch still is much
> better about monitoring system tables that aren't shared, so it's an
> improvement no matter what.
> 
> Matthew T. O'Connor
> 
> 

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