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Android SQLite first groups and then sorts left concatenated queries

2022-07-26 01:00:00 【Blue static cloud】

design sketch

Insert picture description here

Relational query sql character string

sql = String.format("select " +
                    "mg.is_read,mg.del_flag,cgd.group_id,cgd.user_id,cgd.sender_id,cgd.target_id,mg.group_name,mg.intention_type,mg.chat_type,mg.short_msg,mg.group_avatar,mg.avoid_disturbance,mg.update_time" +
                    ",cgd.id,cgd.title,cgd.message,cgd.sender_avatar_name" +
                    ",cgd.thumbnail_path,cgd.video_path,cgd.audio_path,cgd.img_path,cgd.file_path,cgd.sent_time,cgd.extra," +
                    "cgd.uuid,cgd.received_status,cgd.sent_status,cgd.media_type" +
                    " from %s as mg left join %s as cgd on mg.group_id = cgd.group_id where cgd.group_id = '%s' and cgd.user_id = '%s' group by cgd.id order by cgd.sent_time asc", MSG_GROUP, CHAT_GROUP_DETAIL, groupId, uid);