On Mon, 9 Mar 2020 at 09:58, Julien Rouhaud <rjuju...@gmail.com> wrote:
> The query displayed is just the query currently executing, but if the > connection is in a transaction the problematic lock could have been > acquired by > any previously executed query. Did you check in pg_stat_activity if the > connection is in a transaction (e.g. query_start != xact_start)? > Oh, I see. Thank you. I modified query from wiki and it shows that blocking session actually runs for ~12 hours already. Only last COPY command started recently. So maybe golang library did not close session properly and reused it in another completely different task? Although I defer db.Close() everywhere...