Unable to parse unknown SET query

[niyunjiu]

MySQL_Session.cpp:6536:unable_to_parse_set_statement(): [WARNING] Unable to parse unknown SET query from client 172.16.27.186:31614. Setting lock_hostgroup. Please report a bug for future enhancements:SET character_set_connection=utf8,character_set_results=utf8,character_set_client=binary

[niyunjiu]

i can execute this sql success。why did error log output warning？

[renecannao]

The new parser should solve this.
@JavierJF , can you please confirm?