--disable_query_log if (`SELECT from_unixtime((1<<31)+24*3600) is null`) { let $sys_time_max_replace= 2038-01-19 03:14:07.999999; let $sys_timestamp_max=2147483647; } if (`SELECT from_unixtime((1<<31)+24*3600) is not null`) { let $sys_time_max_replace= 2106-02-07 06:28:15.999999; let $sys_timestamp_max=4294967295; } let $sys_time_max= TIMESTAMP'$sys_time_max_replace'; let $sys_datatype_max= $sys_time_max; --enable_query_log