mysqldiff对比主从表结构是否一致

# tar zxvf mysql-utilities-1.5.4.tar.gz
# cd mysql-utilities-1.5.4
# python setup.py install

mysqldiff --server1=admin:123456@192.168.79.10 --server2=admin:123456@192.168.79.11 
--difftype=differ test:test
# WARNING: Using a password on the command line interface can be insecure.
# server1 on 192.168.79.10: ... connected.
# server2 on 192.168.79.11: ... connected.
# Comparing `test` to `test`                                       [PASS]
# Comparing `test`.`t1` to `test`.`t1`                             [FAIL]
# Object definitions differ. (--changes-for=server1)
#
  CREATE TABLE `t1` (
    `id` int(11) DEFAULT NULL,
-   `name` char(4) DEFAULT NULL
?               ^
+   `name` char(16) DEFAULT NULL
?               ^^
  ) ENGINE=InnoDB DEFAULT CHARSET=utf8
Compare failed. One or more differences found.

# mysqldiff --server1=admin:123456@192.168.79.10 --server2=admin:123456@192.168.79.11 
--difftype=sql test:test
# WARNING: Using a password on the command line interface can be insecure.
# server1 on 192.168.79.10: ... connected.
# server2 on 192.168.79.11: ... connected.
# Comparing `test` to `test`                                       [PASS]
# Comparing `test`.`t1` to `test`.`t1`                             [FAIL]
# Transformation for --changes-for=server1:
#
ALTER TABLE `test`.`t1` 
  CHANGE COLUMN name name char(16) NULL;
Compare failed. One or more differences found.