13.7.6.6 RESET Statement

RESET reset_option [, reset_option] ...

reset_option: {
    MASTER
  | QUERY CACHE
  | SLAVE
}

The RESET statement is used to clear the state of various server operations. You must have the RELOAD privilege to execute RESET.

RESET acts as a stronger version of the FLUSH statement. See Section 13.7.6.3, “FLUSH Statement”.

The RESET statement causes an implicit commit. See Section 13.3.3, “Statements That Cause an Implicit Commit”.

The following list describes the permitted RESET statement reset_option values:

• RESET MASTER

  Deletes all binary logs listed in the index file, resets the binary log index file to be empty, and creates a new binary log file.

• RESET QUERY CACHE

  Removes all query results from the query cache.

  Note

  The query cache is deprecated as of MySQL 5.7.20, and is removed in MySQL 8.0. Deprecation includes RESET QUERY CACHE.

• RESET SLAVE

  Makes the replica forget its replication position in the source binary logs. Also resets the relay log by deleting any existing relay log files and beginning a new one.