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Sorry, there is no problem with the following statement and the environment variable. It works fine. But it terminates only one PID due to LIMIT 1. I want to terminate all pids that meet this criteria. If
I remove LIMIT 1, pg_terminate_backend(pid) will not work as it expects only one pid at a time. So, the question is how to rewrite this psql so it loops through all pids one pid at a time? Thanks in advance for your help. SELECT pid, pg_terminate_backend(pid) FROM pg_stat_activity WHERE pid IN (select unnest(pg_blocking_pids(pid)) from pg_stat_activity where cardinality(pg_blocking_pids(pid)) > 0) and usename = 'DBUSER_10' and now() - state_change >= interval $a'${TIMEOUT_MINS}'$a order by now() - state_change >= interval $a'${TIMEOUT_MINS}'$a desc limit 1; From: David G. Johnston <david.g.johnston@xxxxxxxxx> [EXTERNAL] – This message is from an external sender On Thu, Jul 4, 2024 at 4:56 PM Murthy Nunna <mnunna@xxxxxxxx> wrote:
The only real trick is using a psql variable instead of the shell-injection of the environment variable. Use the --set CLI argument to assign the environment variable to a psql variable then
refer to it in the query using :'timout_mins' Removing the limit 1 should be as simple as not typing limit 1 when you bring the query into the psql script. David J. |
