Re: Handle infinite recursion in logical replication setup

vignesh C <vignesh21@gmail.com>

From: vignesh C <vignesh21@gmail.com>
To: "shiy.fnst@fujitsu.com" <shiy.fnst@fujitsu.com>
Cc: Peter Smith <smithpb2250@gmail.com>, Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>, "kuroda.hayato@fujitsu.com" <kuroda.hayato@fujitsu.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-05-20T09:45:42Z
Lists: pgsql-hackers
On Wed, May 18, 2022 at 1:40 PM shiy.fnst@fujitsu.com
<shiy.fnst@fujitsu.com> wrote:
>
> On Wed, May 4, 2022 2:47 PM vignesh C <vignesh21@gmail.com> wrote:
> >
> > Thanks for the comments, the attached v13 patch has the changes for the same.
> >
>
> Thanks for your patch. Here are some comments on v13-0001 patch.
>
> 1)
> @@ -152,6 +152,18 @@ CREATE SUBSCRIPTION <replaceable class="parameter">subscription_name</replaceabl
>          </listitem>
>         </varlistentry>
>
> +       <varlistentry>
> +        <term><literal>local_only</literal> (<type>boolean</type>)</term>
> +        <listitem>
> +         <para>
> +          Specifies whether the subscription will request the publisher to send
> +          locally originated changes at the publisher node, or send any
> +          publisher node changes regardless of their origin. The default is
> +          <literal>false</literal>.
> +         </para>
> +        </listitem>
> +       </varlistentry>
> +
>         <varlistentry>
>          <term><literal>slot_name</literal> (<type>string</type>)</term>
>          <listitem>
>
> I think this change should be put after "The following parameters control the
> subscription's replication behavior after it has been created", thoughts?

Modified

> 2)
> A new column "sublocalonly" is added to pg_subscription, so maybe we need add it
> to pg_subscription document, too. (in doc/src/sgml/catalogs.sgml)

Modified

> 3)
> /*
>  * Currently we always forward.
>  */
> static bool
> pgoutput_origin_filter(LogicalDecodingContext *ctx,
>                                            RepOriginId origin_id)
>
> Should we modify the comment of pgoutput_origin_filter()? It doesn't match the
> code.

Modified

Thanks for the comments, the v14 patch attached at [1] has the changes
for the same.
[1] - https://www.postgresql.org/message-id/CALDaNm0xuYy35vOudVHBjov3fQ%3DjBRHJHKUUN9VarqO%3DYqtaxg%40mail.gmail.com

Regards,
Vignesh



Commits

  1. Improved CREATE SUBSCRIPTION message for clarity

  2. Fix the test case introduced by commit 8756930190.

  3. Raise a warning if there is a possibility of data from multiple origins.

  4. Add wait_for_subscription_sync for TAP tests.

  5. Bump catversion for commit d8cd0c6c95c0120168df93aae095df4e0682a08a.

  6. Allow users to skip logical replication of data having origin.

  7. Improve two comments related to a boolean DefElem's value

  8. doc: Fix man page whitespace issues