Find the top three high earner employees from each department | Data Engineer Interview | Michaels
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data = [(1,'Joe',85000,1),(2,'Henry',80000,2),(3,'Sam',60000,2),(4,'Max',90000,1),(5,'Janet',69000,1),(6,'Randy',85000,1),(7,'Will',70000,1)]
schema = ['emp_id','name','salary','departmentId']
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