SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #98 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'retevis.de.r.IsMain' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
错误代码：#42000 - Array ( [0] => 42000 [1] => 1055 [2] => Expression #98 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'retevis.de.r.IsMain' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by )