RE: Adding a '--two-phase' option to 'pg_createsubscriber' utility.

From: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>
To: 'Shubham Khanna' <khannashubham1197(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>
Cc: Peter Smith <smithpb2250(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: RE: Adding a '--two-phase' option to 'pg_createsubscriber' utility.
Date: 2024-12-12 02:43:50
Message-ID: TYAPR01MB56926557E26E3B2FCF91EF77F53F2@TYAPR01MB5692.jpnprd01.prod.outlook.com
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Dear Shubham,

> Thank you for pointing this out and for suggesting the changes. I
> agree with your approach.
> Also, I found a mistake in getopt_long and fixed it in this version of
> the patch.
> The attached patch contains the suggested changes.

Thanks for updating the patch. I think the patch looks mostly OK.

Regarding the test code - I think we should directly refer the pg_subscription catalog,
and confirm that subtwophase is 'p'. IIUC, we can wait until
all subscriptions. Subtwophasestate are 'e', by using poll_query_until() and [1].

[1]: SELECT count(1) = 0 FROM pg_subscription WHERE subtwophasestate NOT IN ('e');

Best regards,
Hayato Kuroda
FUJITSU LIMITED

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