yujun777 opened a new pull request, #63884: URL: https://github.com/apache/doris/pull/63884
### What problem does this PR solve? `COM_RESET_CONNECTION` only reset the default catalog and catalog database cache, so session-scoped variables such as `sql_select_limit` could leak into the next logical connection when clients reused the same physical connection. ### What is changed? - Reset session variables, user variables, prepared statements, running query state, catalog/database state, and returned row count on `COM_RESET_CONNECTION`. - Reapply user-level default `query_timeout` and `insert_timeout` after rebuilding `SessionVariable`. - Add a regression test helper that sends `COM_RESET_CONNECTION` directly through the MySQL protocol. - Add a regression case for `sql_select_limit = 0` being cleared after reset connection. ### Check List - [x] FE UT: `ConnectContextTest` - [x] Regression: `test_reset_connection_session_variable` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
