PG13 partitioned table logical replication

From: Nicolas Sornin <nicolas(dot)sornin(at)actia(dot)be>
To: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: PG13 partitioned table logical replication
Date: 2020-09-10 12:13:55
Message-ID: AM0PR05MB6801F84970377191B90FCA9BF1270@AM0PR05MB6801.eurprd05.prod.outlook.com
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Dear community,

I just made some test of upcoming version of porstgresql, especially the ability to publish partitioned table via root partition.
I tried to setup PG13 to PG12 replication with different partitioning schemes.

My first attempt was to replicate time partitioned table in PG13 cluster to a regular table in PG12 cluster, but after looking at the logs I saw the following error :

2020-09-09 12:21:33.964 CEST [22976] LOG: logical replication table synchronization worker for subscription "rep_part_sub", table "stock_sales" has started
2020-09-09 12:21:33.997 CEST [22976] ERROR: table "public.stock_sales" not found on publisher
2020-09-09 12:21:33.999 CEST [20346] LOG: background worker "logical replication worker" (PID 22976) exited with exit code 1

While not being aware of underlying mechanics of logical replication, I was expecting this use case to work given table names and column names/types are the same on both sides.

Is this the intended behavior and simply out of the scope of the changes introduced by PG13 ?

Thank you,
Best regards,

Nicolas SORNIN
IT Team Lead

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