command:
  sql:
    dump:
      options:
        # Omit cache and similar tables (including during a sql:sync).
        structure-tables-key: common
        # Don't bother pulling migration tables at all.
        skip-tables-key: common
sql:
  # List of tables whose *data* is skipped by the 'sql-dump' and 'sql-sync'
  # commands when the "--structure-tables-key=common" option is provided.
  # You may add specific tables to the existing array or add a new element.
  structure-tables:
    common:
      - cache
      - 'cache_*'
      - history
      - 'search_*'
      - 'sessions'
      - 'watchdog'
  # List of tables to be omitted entirely from SQL dumps made by the 'sql-dump'
  # and 'sql-sync' commands when the "--skip-tables-key=common" option is
  # provided on the command line.  This is useful if your database contains
  # non-Drupal tables used by some other application or during a migration for
  # example.  You may add new tables to the existing array or add a new element.
  skip-tables:
    common:
      - 'migration_*'