Fix mailing report on full_group by mode
Created by: jitendrapurohit
Activity id from civicrm_mandrill_activity
table is added to the report in this ext. With full group by mode enabled, it does not appear in the group by clause and results in fatal db error on mailing reports. To replicate -
- go to a mailing report, eg:
civicrm/mailing/report?mid=<mailing id>&reset=1
- Click the 'Report' option for Click-throughs -> Error.