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CREATE TABLE
INSERT 0 6
email carrier id d_date
email_1 car_1 1 2019-02-08 00:00:00
email_1 car_1 1 2019-02-09 00:00:00
email_1 car_1 2 2019-02-10 00:00:00
email_1 car_2 2 2019-02-11 00:00:00
email_2 car_3 3 2019-02-09 00:00:00
email_2 car_4 4 2019-02-09 00:00:00
SELECT 6
email carrier id date
email_1 car_1 2 2019-02-10 00:00:00
email_2 car_4 4 2019-02-09 00:00:00
email_1 car_1 1 2019-02-08 00:00:00
email_1 car_2 2 2019-02-11 00:00:00
email_2 car_3 3 2019-02-09 00:00:00
SELECT 5