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2024.2 LTS
2025.2 LTS
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AdventureWorks
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CREATE TABLE tab_name AS SELECT 1 AS id , 56 AS user_id, 'John' AS name UNION SELECT 2 , 25 , 'Carry' UNION SELECT 3 , 56 , 'Jim' UNION SELECT 4 , 12 , 'Jolana' UNION SELECT 5 , 12 , 'Ava'
SELECT * FROM (SELECT *, ROW_NUMBER() OVER(PARTITION BY user_id ORDER BY id DESC) AS rn FROM tab_name) sub WHERE rn = 1 ORDER BY id DESC
id
user_id
name
rn
5
12
Ava
1
3
56
Jim
1
2
25
Carry
1