Wybierz odrębne rekordy w SQL z maksymalnym desc
SELECT * FROM whatsapp_logs WHERE sender_name NOT LIKE '%___whatsApp Business%' AND phone_service_id=? AND message_datetime IN (SELECT MAX(message_datetime) FROM whatsapp_logs WHERE sender_name NOT LIKE '%___whatsApp Business%' AND phone_service_id=? GROUP BY conversation_id) AND conversation_id IS NOT NULL GROUP BY conversation_id ORDER BY message_datetime DESC
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