Fwd: Views "missing" from information_schema.view_table_usage

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От Jonathan Lemig
Тема Fwd: Views "missing" from information_schema.view_table_usage
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Msg-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@gmail.com>
Date: Fri, Dec 2, 2022 at 4:14 PM
Subject: Re: Views "missing" from information_schema.view_table_usage
To: Erik Wienhold <ewie@ewie.name>
Cc: <pgsql-general@lists.postgresql.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@ewie.name> wrote:
> On 02/12/2022 21:51 CET Jonathan Lemig <jtlemig@gmail.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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