From: | Thom Brown <thom(at)linux(dot)com> |
---|---|
To: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Logical replication failing when foreign key present |
Date: | 2017-01-22 17:50:28 |
Message-ID: | CAA-aLv5WRQbfxdR_ha=tR_ghuS00pezr1ymia6WNMeO7hUDeLQ@mail.gmail.com |
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Lists: | pgsql-hackers |
Hi,
There's an issue which I haven't seen documented as expected
behaviour, where replicating data to a table which has a foreign key
results in a replication failure. This produces the following log
entries:
LOG: starting logical replication worker for subscription "contacts_sub"
LOG: logical replication apply for subscription "contacts_sub" has started
ERROR: AfterTriggerSaveEvent() called outside of query
LOG: worker process: logical replication worker for subscription
16408 (PID 19201) exited with exit code 1
Reproducible test case:
On both instances:
CREATE TABLE b (bid int PRIMARY KEY);
CREATE TABLE a (id int PRIMARY KEY, bid int REFERENCES b (bid));
INSERT INTO b (bid) VALUES (1);
First instance:
CREATE PUBLICATION a_pub FOR TABLE a;
Second instance:
CREATE SUBSCRIPTION a_sub CONNECTION 'host=127.0.0.1 port=5530
user=thom dbname=postgres' PUBLICATION a_pub;
First instance:
INSERT INTO a (id, bid) VALUES (1,1);
Regards
Thom
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