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This column was added in MySQL 8.0.18. 

## • SOURCE_CONNECTION_AUTO_FAILOVER 

Whether the asynchronous connection failover mechanism is activated for this replication channel. ( CHANGE REPLICATION SOURCE TO  option: SOURCE_CONNECTION_AUTO_FAILOVER , CHANGE MASTER TO  option: SOURCE_CONNECTION_AUTO_FAILOVER ) 

This column was added in MySQL 8.0.22. 

The replication_connection_configuration  table has these indexes: 

•Primary key on ( CHANNEL_NAME ) 

TRUNCATE TABLE  is not permitted for the replication_connection_configuration  table. 

The following table shows the correspondence between replication_connection_configuration columns and SHOW REPLICA | SLAVE STATUS  columns. 

<img src='content_image/716573.jpg'>

