Re: ANALYZE'ing table hierarchies - Mailing list pgsql-admin

From Tom Lane
Subject Re: ANALYZE'ing table hierarchies
Date
Msg-id 11677.1455888766@sss.pgh.pa.us
Whole thread Raw
In response to Re: ANALYZE'ing table hierarchies  (nunks <nunks.lol@gmail.com>)
Responses Re: ANALYZE'ing table hierarchies  (nunks <nunks.lol@gmail.com>)
List pgsql-admin
nunks <nunks.lol@gmail.com> writes:
> What eludes me is that part of the documentation says we should analyze
> each table individually, and another part says we can count on ANALYZE to
> work on the entire inheritance tree...

Whole-tree stats are a different thing from per-table stats.  What
ANALYZE on a parent table produces is (1) stats for that table alone
and (2) summary stats for the whole inheritance tree rooted at that table.
If you want (3) stats for a child table alone then you need to ANALYZE
that child table by name.

            regards, tom lane


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