Re: partition tree inspection functions

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>, Jesper Pedersen <jesper.pedersen@redhat.com>, Robert Haas <robertmhaas@gmail.com>, Jeevan Ladhe <jeevan.ladhe@enterprisedb.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2018-10-01T06:27:43Z
Lists: pgsql-hackers
On Mon, Oct 01, 2018 at 03:16:32PM +0900, Amit Langote wrote:
> I wasn't able to respond to some of issues that Jesper brought up with the
> approach taken by the latest patch whereby there is no separate
> pg_partition_level function.  He said that such a function would be useful
> to get the information about the individual leaf partitions, but I was no
> longer sure of providing such a function separately.

Perhaps that could be debated separately as well?  From what I can see
what's available would unlock the psql patch which would like to add
support for \dP, or show the size of partitions more easily.  I am also
not completely sure that I see the use-case for pg_partition_level or
even pg_partition_root_parent as usually in their schemas users append
rather similar relation names to the parent and the children.  Or
perhaps not?
--
Michael

Commits

  1. Add pg_partition_tree to display information about partitions