mysql 超大大数据库复制前可执行的加速导入的SQL

use 数据库;
set global innodb_flush_log_at_trx_commit=0;
set global max_allowed_packet=1024*1024*20;
set global bulk_insert_buffer_size=32*1024*1024;
set global innodb_buffer_pool_size=32*1024*1024;