Horton

Re: Add pg_partition_root to get top-most parent of a partition tree

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Michael Paquier <michael@paquier.xyz>
Cc: Postgres hackers <pgsql-hackers@postgresql.org>, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
Date: 2018-12-07T01:48:59Z
Lists: pgsql-hackers 
I think adding a pg_partition_root() call to as many pg_partition_tree
tests as you modified is overkill ... OTOH I'd have one test that
invokes pg_partition_tree(pg_partition_root(some-partition)) to verify
that starting from any point in the tree you get the whole tree.

I haven't actually tried to write a query that obtains a tree of
constraints using this, mind ...

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Add pg_partition_root to display top-most parent of a partition tree

  2. Tweak pg_partition_tree for undefined relations and unsupported relkinds