/socialnetwork_demo/index.php
1055 - Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'socialne_social.user_chat.chat_id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

select * from user_chat where (receiver_id='') and inserted <= '2020-09-24 05:19:26' and inserted >= '2020-09-24 05:09:26' group by receiver_id order by chat_id desc

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