Re: using index "pg_toast_..." despite IgnoreSystemIndexes

On Mon, Aug 27, 2012 at 10:33:22AM -0400, lsq@nym.hush.com wrote:
> Hi
>
> After an upgrade to 8.4.12 from 8.4.10 we vacuum/analyzed the db.

You downgraded a server?  Depending on the fixes in minor releases, that
might not work.

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


> Postgres is running in standalone mode at this point.
>
>
> vacuumdb --echo --analyze --all --verbose -U sysdba
>
> 07/31/12 04:09:57    INFO:  analyzing
> "information_schema.sql_features"
> 07/31/12 04:09:57    INFO:  "sql_features": scanned 7 of 7 pages,
> containing 649 live rows and 0 dead rows; 649 rows in sample, 649
> estimated total rows
> 07/31/12 04:09:57    WARNING:  using index "pg_toast_2619_index"
> despite IgnoreSystemIndexes
> 07/31/12 04:09:57    WARNING:  using index "pg_toast_2619_index"
> despite IgnoreSystemIndexes
> 07/31/12 04:09:57    WARNING:  using index "pg_toast_2619_index"
> despite IgnoreSystemIndexes
> 07/31/12 04:09:57    WARNING:  using index "pg_toast_2619_index"
> despite IgnoreSystemIndexes
> 07/31/12 04:09:57    INFO:  vacuuming
> "information_schema.sql_implementation_info"
> 07/31/12 04:09:57    INFO:  "sql_implementation_info": found 0
> removable, 12 nonremovable row versions in 1 out of 1 pages
> 07/31/12 04:09:57    DETAIL:  0 dead row versions cannot be removed
> yet.
> 07/31/12 04:09:57    There were 1 unused item pointers.
> 07/31/12 04:09:57    0 pages are entirely empty.
> 07/31/12 04:09:57    CPU 0.00s/0.00u sec elapsed 0.00 sec.
> 07/31/12 04:09:57    INFO:  vacuuming "pg_toast.pg_toast_11452"
>
>
> I see the warning generated in systable_beginscan_ordered as a
> warning, and then it proceeds to do the work anyway.
>
> It appears as if this is benign.  Is that the case?
>
> Thanks
>
>
>
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--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +