selecting a column based on a minimum value of another column

Question

I have the following table.

test_type |  brand  | model  | band | firmware_version | avg_throughput
-----------+---------+--------+------+-----------------+-         


        

Answer 1

This should be what you're looking for if I'm reading your post correctly, and I think it's a pretty easily readable way of doing it. :-)

WITH min_firmware_version (model, firmware_version)
AS
(
    SELECT
        model,
        MIN(firmware_version)
    FROM temp_table
    GROUP BY
        model
)
SELECT
    temp_table.model,
    temp_table.firmware_version,
    temp_table.avg_throughput
FROM temp_table
INNER JOIN min_firmware_version
    ON temp_table.model = min_firmware_version.model
    AND temp_table.firmware_version = min_firmware_version.firmware_version