務上需要支持create table XXX as select * from XXX; 這種創建表的語法，但是MySQL5.7.x版本里面gtid是開啟的，會報錯
ERROR 1786 (HY000):Statement violates GTID consistency: CREATE TABLE ... SELECT.官方說明：https://dev.mysql.com/doc/refman/5.7/en/replication-gtids-restrictions.html
CREATE TABLE ... SELECT statements. CREATE TABLE ... SELECT is not safe for statement-based replication. When using row-based replication, this statement is actually logged as two separate events—one for the creation of the table, and another for the insertion of rows from the source table into the new table just created. When this statement is executed within a transaction, it is possible in some cases for these two events to receive the same transaction identifier, which means that the transaction containing the inserts is skipped by the slave. Therefore, CREATE TABLE ... SELECT is not supported when using GTID-based replication.解決辦法關閉GTID模式：
my.cnf里面修改參數為：
gtid_mode = OFF
enforce_gtid_consistency = OFF重啟MySQL，再次創建成功：
mysql> show variables like '%gtid_mode%'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | gtid_mode | OFF | +---------------+-------+ 1 row in set (0.01 sec) mysql> show variables like '%enforce_gtid_consistency%'; +--------------------------+-------+ | Variable_name | Value | +--------------------------+-------+ | enforce_gtid_consistency | OFF | +--------------------------+-------+ 1 row in set (0.01 sec) mysql> create table t1 as select * from BS_CONT; Query OK, 0 rows affected (0.12 sec)