When an query is executed in postgres – pgadmin4 .
Can i know the query to check the performance of the query using any system tables ?
example :
- Time taken
- Query run by
3.CPU impact - any blocks
etc..
Postgresql – How to find the system impact of a query in postgres
postgresql
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Best Answer
Add pg_stat_statements in shared preload libraries Create extension pg_stat_statements. Then query on pg_stat_statements to get time related stats of the query.
Query run by can be tracked from pg_stat_activity for the currently running statements.
For blocks you can query as below SELECT activity.pid, activity.usename, activity.query, blocking.pid AS blocking_id, blocking.query AS blocking_query FROM pg_stat_activity AS activity JOIN pg_stat_activity AS blocking ON blocking.pid = ANY(pg_blocking_pids(activity.pid));