Fwd: Views "missing" from information_schema.view_table_usage

From: Jonathan Lemig <jtlemig(at)gmail(dot)com>
To: pgsql-docs(at)lists(dot)postgresql(dot)org
Subject: Fwd: Views "missing" from information_schema.view_table_usage
Date: 2022-12-05 18:18:03
Message-ID: CABR8q__rUgxvcWVgYt=eD2K_XGQL8g34K9uPprHuVHEHUHStNQ@mail.gmail.com
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Hello,

I'd like to request the documentation be updated to add a note that the
information_schema.view_table_usage view won't include views that query
materialized views.

Thanks!

Jon

---------- Forwarded message ---------
From: Jonathan Lemig <jtlemig(at)gmail(dot)com>
Date: Fri, Dec 2, 2022 at 4:14 PM
Subject: Re: Views "missing" from information_schema.view_table_usage
To: Erik Wienhold <ewie(at)ewie(dot)name>
Cc: <pgsql-general(at)lists(dot)postgresql(dot)org>

Hi Erik - sorry I missed your reply when I replied to David's. That is
indeed the issue. The object that the view is querying is a materialized
view.

Thanks for the link.

Jon

On Fri, Dec 2, 2022 at 3:33 PM Erik Wienhold <ewie(at)ewie(dot)name> wrote:

> > On 02/12/2022 21:51 CET Jonathan Lemig <jtlemig(at)gmail(dot)com> wrote:
> >
> > Has anybody ever encountered this, and if so, did you find a resolution?
> > Or perhaps there other limitations with the VTU that I'm unaware of?
>
> Is the one view you cannot find in view_table_usage a materialized view?
> Because those are not covered by view_table_usage[1].
>
> [1]
> https://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/catalog/information_schema.sql;h=18725a02d1fb6ffda3d218033b972a0ff23aac3b;hb=HEAD#l2605
>
> --
> Erik
>

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