SELECT
date_part('day', to_char(EXPECT_PURCHASE_START_TIME,'yyyy-MM-dd')::timestamp -to_char(now(),'yyyy-MM-dd')::timestamp)
FROM ITMS_PROCURE
SELECT
date_part('day', to_char(EXPECT_PURCHASE_START_TIME,'yyyy-MM-dd')::timestamp -to_char(now(),'yyyy-MM-dd')::timestamp)
FROM ITMS_PROCURE