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Removed Features
The following constructs are obsolete and have been removed in MySQL 5.6. Where alternatives are
shown, applications should be updated to use them.
• The --log server option and the log system variable. Instead, use the --general_log [500]
option to enable the general query log and the --general_log_file=file_name [500] option
to set the general query log file name.
• The --log-slow-queries server option and the log_slow_queries system variable.
Instead, use the --slow_query_log [554] option to enable the slow query log and the --
slow_query_log_file=file_name [554] option to set the slow query log file name.
• The --one-thread server option. Use --thread_handling=no-threads [565] instead.
• The --safe-mode server option.
• The --skip-thread-priority server option.
• The --table-cache server option. Use the table_open_cache [564] system variable instead.
• The --init-rpl-role and --rpl-recovery-rank options, the rpl_recovery_rank system
variable, and the Rpl_status status variable.
• The engine_condition_pushdown system variable. Use the engine_condition_pushdown
flag of the optimizer_switch [534] variable instead.
• The have_csv, have_innodb, have_ndbcluster, and have_partitioning system variables.
Use SHOW PLUGINS or query the PLUGINS table in the INFORMATION_SCHEMA database instead.
• The sql_big_tables system variable. Use big_tables [481] instead.
• The sql_low_priority_updates system variable. Use low_priority_updates [515]
instead.
• The sql_max_join_size system variable. Use max_join_size [520] instead.
• The max_long_data_size system variable. Use max_allowed_packet [516] instead.
• The FLUSH MASTER and FLUSH SLAVE statements. Use the RESET MASTER and RESET SLAVE
statements instead.
• The SLAVE START and SLAVE STOP statements. Use The START SLAVE and STOP SLAVE
statements.
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