Hello,
This is available in https://github.com/legrandlegrand/pg_stat_sql_plans
extension with a specific function
pgssp_backend_queryid(pid) that permits to join pg_stat_activity with
pg_stat_sql_plans (that is similar to pg_stat_statements) and also permits
to collect samples of wait events per query id.
This extension computes its own queryid based on a normalized query text
(that doesn't change after table
drop/create).
Maybe that queryid calculation should stay in a dedicated extension,
permiting to users to choose their queryid definition.
Regards
PAscal
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