Provide support for "TDSQL for MySQL"

TDSQL for MySQL (TDSQL for MySQL) is a distributed database that supports automatic horizontal splitting and Shared Nothing architecture deployed on Tencent Cloud. The TDSQL MySQL version, that is, the business obtains a complete logical database table, and the backend will evenly split the database table into multiple physical shard nodes. 

pls check: TDSQL MYSQL version, Tencent Cloud become more and more popular in recent years, pls provide support for "TDSQL for MySQL".