Details
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Task
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Status: Open (View Workflow)
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Major
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Resolution: Unresolved
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Description
Hello,
`EXPLAIN SELECT ...` shows the EXPLAIN for a query that never runs.
`SHOW EXPLAIN FOR conn_id` shows the EXPLAIN for a query that is currently running.
Is it possible to get the EXPLAIN for the last query that ran on a connection?
For example, if my application detected that a specific query took over 2 seconds to run for a user, I'd like to log the `EXPLAIN` or `ANALYZE` with the query plan of that query.
I'm not sure that re-running the query with `EXPLAIN` or `ANALYZE` will give me the exact query plan that was used on its previous run, as MariaDB could potentially use another query plan on the re-run.
(I am aware of `log_slow_verbosity=query_plan,explain`, but I don't want to log this for every query that takes over 1 second - only this specific query)
Thank you very much!
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