Relay Log and Replication Metadata Repositories slave_relay_log_info Table Column SHOW REPLICA | SLAVE STATUS  Column Line in  relay- log.info  File Description Master_log_pos Exec_Source_Log_Pos 5 The equivalent position within the source’s binary log file of the events that have been executed on the replica Sql_delay SQL_Delay 6 The number of seconds that the replica must lag the source Number_of_workers [None] 7 The number of worker threads for applying replication transactions in parallel Id [None] 8 ID used for internal purposes; currently this is always 1 Channel_name Channel_name 9 The name of the replication channel Privilege_checks_username [None] 10 The user name for the PRIVILEGE_CHECKS_USER account for the channel Privilege_checks_hostname [None] 11 The host name for the PRIVILEGE_CHECKS_USER account for the channel Require_row_format [None] 12 Whether the channel accepts only row-based events Require_table_primary_key_check [None] 13 The channel’s policy on whether tables must have primary keys for  CREATE TABLE  and  ALTER TABLE  operations Assign_gtids_to_anonymous_transactions_type [None] 14 Whether the channel assigns a GTID to replicated transactions that do not already have one, and if so, whether it uses the replica’s local UUID or a manually set UUID Assign_gtids_to_anonymous_transactions_value [None] 15 The UUID used in the GTIDs assigned to anonymous transactions 3605