-- community_chat_joined (Message service message)
ALTERTABLE`message`
ADDCOLUMNIFNOTEXISTS`community_chat_joined`TEXTNULLDEFAULTNULLCOMMENT'Service message: chat joined by a user from a Community'AFTER`community_chat_removed`;
ALTERTABLE`edited_message`
ADDCOLUMNIFNOTEXISTS`community_chat_joined`TEXTNULLDEFAULTNULLCOMMENT'Service message: chat joined by a user from a Community'AFTER`community_chat_removed`;