ejabberd 16.06 + mysql 5.5.50, message history is not saved
问题 I use ejabberd 16.06 + mysql 5.5.50, message history is not saved. My ejabberd.yml: ## MySQL server: odbc_type: mysql odbc_server: "freldo" odbc_port: 3306 odbc_database: "ejabberd" odbc_username: "ejabberd" odbc_password: "ejabberd" modules: ... mod_mam: db_type: odbc default: always for the formation of the database structure, I used: mysql.sql I get an error: @ejabberd_sql:check_error:1039 SQL query 'SELECT timestamp, xml, peer, kind, nick FROM (SELECT timestamp, xml, peer, kind, nick FROM