> I have a strange error when using logical replication between a 11.2 > source database and a 12.3 target. > > If I create the publication with all needed tables (about 50) at > once, I get "duplicate key value violates unique constraint xxx_pkey" > errors during the initial replication (when creating the > subscription). > > When create the publication only with a few tables, the initial data > sync works without problems. To replicate all tables, I add the > tables incrementally to the publication, and refresh the > subscription. > > If I do it like that (step-by-step) everything works fine. Tables > that generated the "duplicate key value" error previously will > replicate just fine. The tables are quite small, some of them less > then 100 rows. > Any pointers where I should start looking to investigate this?
