数据库错误: Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'daxueyin_forumdatabase.l.last_read' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
文件: /home/daxueyin/public_html/forum/Sources/FelBlog.php
行: 129