group by clause; this is incompatible with sql_mode=only_full_group_by codeigniter code example
Example: GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
SET GLOBAL sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));
SET SESSION sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));