From: | Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com> |
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To: | Avi Weinberg <AviW(at)gilat(dot)com>, "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org> |
Subject: | Re: Are Foreign Key Disabled During Logical Replication Initial Sync? |
Date: | 2021-12-08 10:43:34 |
Message-ID: | 37798fc0-d990-e531-f171-80e79f8f1c87@enterprisedb.com |
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Lists: | pgsql-general |
On 07.12.21 08:51, Avi Weinberg wrote:
> Just to clarify, they are disabled during initial sync only or are always disabled on subscriber side?
> Are all triggers disabled during initial sync or just foreign keys?
All triggers are by default disabled on replicas. See the ALTER TABLE
clauses DISABLE/ENABLE [ REPLICA | ALWAYS ] TRIGGER to change this.
> How can I know that initial sync completed for all tables? Is it checking when pg_subscription_rel.srsubstate is 'i' or 'd' for all tables or there is a better way?
There are various ways to phrase this. The test suite often uses this
query:
SELECT count(1) = 0 FROM pg_subscription_rel WHERE srsubstate NOT IN
('r', 's');
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