1、支持中文注释，2、支持过滤表，3、支持过滤特定DDL
yum install python-devel -y
pip install mysql-python pymysql schemaobject schemasync
替换lib64/python2.7/site-packages/schemasync里的文件
[root@GZ sql]# schemasync --help
Usage:
schemasync [options]
source/target format: mysql://user:pass@host:port/database
A MySQL Schema Synchronization Utility
Options:
-h, --help show this help message and exit
-V, --version show version and exit.
-r, --revision increment the migration script version number if a
file with the same name already exists.
-a, --sync-auto-inc sync the AUTO_INCREMENT value for each table.
-c, --sync-comments sync the COMMENT field for all tables AND columns
-D, --no-date removes the date from the file format
--charset=CHARSET set the connection charset, default: utf8
--tag=TAG tag the migration scripts as . Valid
characters include [A-Za-z0-9-]
--output-directory=OUTPUT_DIRECTORY
directory to write the migration scrips. The default
is current working directory. Must use absolute path
if provided.
--log-directory=LOG_DIRECTORY
set the directory to write the log to. Must use
absolute path if provided. Default is output
directory. Log filename is schemasync.log
--table=TABLE sync the special table
--mode=MODE default 0:all schema change;1:ignore drop
table;2:ignore drop column;3:ignore drop table and
column;100:only drop table and column
mode为3时过滤drop table 和drop column
mode为100时只产生drop table 和drop column
