SQL syntax error creating logging triggers if column name is reserved word

If the Civi database has a table with a column name that is a MySQL reserved word, then enabling advanced logging leads to a SQL syntax error when creating triggers. Core Civi tables do not provoke the problem but some extensions do, e.g. [CiviREBUX|https://civicrm.org/extensions/civirebux-native-report-building-extension. |https://civicrm.org/extensions/civirebux-native-report-building-extension].]If logging is already enabled, then the error occurs when trying to enable the extension - see https://civicrm.stackexchange.com/questions/15375/has-anyone-gotten-civirebux-working .

SQL error:

CREATE TRIGGER civicrm_civirebux_configuration_after_insert after insert ON civicrm_civirebux_configuration FOR EACH ROW BEGIN  IF ( @civicrm_disable_logging IS NULL OR @civicrm_disable_logging = 0 ) THEN INSERT INTO log_civicrm_civirebux_configuration (id, name, renderer, aggregator, vals, rows, cols, time, desc, type, log_conn_id, log_user_id, log_action) VALUES ( NEW.id, NEW.name, NEW.renderer, NEW.aggregator, NEW.vals, NEW.rows, NEW.cols, NEW.time, NEW.desc, NEW.type, COALESCE(@uniqueID, LEFT(CONCAT('c_', unix_timestamp()/3600, CONNECTION_ID()), 17)), @civicrm_user_id, 'insert'); END IF; END [nativecode=1064 ** You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'desc, type, log_conn_id, log_user_id, log_action) VALUES ( NEW.id, NEW.name, NEW' at line 1]

The error occurs in this case due to a column named `desc` in table `civicrm_civirebux_configuration`.

I have successfully tested a fix on 4.6.27 . Will test against dmaster & create a PR.