Re: Column Filtering in Logical Replication

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, "houzj(dot)fnst(at)fujitsu(dot)com" <houzj(dot)fnst(at)fujitsu(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Rahila Syed <rahilasyed90(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, "shiy(dot)fnst(at)fujitsu(dot)com" <shiy(dot)fnst(at)fujitsu(dot)com>
Subject: Re: Column Filtering in Logical Replication
Date: 2022-03-26 21:55:55
Message-ID: 173619.1648331755@sss.pgh.pa.us
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Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com> writes:
> On 3/26/22 22:37, Tom Lane wrote:
>> This smells like an uninitialized-variable problem, but I've had
>> no luck finding any problem under valgrind. Not sure how to progress
>> from here.

> I think I see the problem - there's a CREATE SUBSCRIPTION but the test
> is not waiting for the tablesync to complete, so sometimes it finishes
> in time and sometimes not. That'd explain the flaky behavior, and it's
> just this one test that misses the sync AFAICS.

Ah, that would also fit the symptoms.

regards, tom lane

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