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I wrote code python3 which prints result of sql query:
field1,field2,field3,field4
(3, 'value1', 'value2', '984')
(3, 'value1', 'value2', '155')
(3, 'value1', 'value2', '311')
(2, 'value1', 'value2', '198')
(2, 'value1', 'value2', '957')
I want to group rows by field4 and get result below:...