Mats Julian Olsen <mats@xxxxxxxxxxxxxxxxx> writes: >> Postgres version(s)? > x: Aurora PostgreSQL 11.7 on x86_64-pc-linux-gnu, compiled by gcc (GCC) > 4.9.3, 64-bit (RDS) > y: PostgreSQL 12.2 (Ubuntu 12.2-2.pgdg19.10+1) on x86_64-pc-linux-gnu, > compiled by gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, 64-bit (GCP) Hmm, I wonder if Aurora could be doing something funny here? Anyway, to answer your question, no that's not the expected level of performance. postgres_fdw is certainly not inexpensive compared to local table access, but I'd still think inserts should take only a small number of milliseconds. It seems like something must be blocking the query. Have you tried looking into pg_locks on the remote server while this query is running? regards, tom lane
