pgsql: Describe (auto-)analyze behavior for partitioned tables

Describe (auto-)analyze behavior for partitioned tables

This explains the new behavior introduced by 0827e8af70f4 as well as
preexisting.

Author: Justin Pryzby <pryzby@telsasoft.com>
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/20210423180152.GA17270@telsasoft.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/1b5617eb844cd2470a334c1d2eec66cf9b39c41a

Modified Files
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doc/src/sgml/maintenance.sgml    |  6 ++++++
doc/src/sgml/perform.sgml        |  3 ++-
doc/src/sgml/ref/analyze.sgml    | 40 +++++++++++++++++++++++++++++-----------
doc/src/sgml/ref/pg_restore.sgml |  6 ++++--
4 files changed, 41 insertions(+), 14 deletions(-)