On 25.11.2020 17:58, Tom Lane wrote:
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
Thanks Tom, I'll try to spin up a regular Postgres instance on both rds
and ec2 and see if that helps. As for the locks, I can not see any
blocked activity on the remote server while the query runs.
--
Mats
CTO @ Dune Analytics
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