[sql] PostgreSQL - fetch the row which has the Max value for a column

You can do it with window functions

SELECT t.*
FROM
    (SELECT
        *,
        ROW_NUMBER() OVER(PARTITION BY usr_id ORDER BY time_stamp DESC) as r
    FROM lives) as t
WHERE t.r = 1

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PostgreSQL - fetch the row which has the Max value for a column

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PostgreSQL - fetch the row which has the Max value for a column