Flipkart

PySpark transformations at scale.

4 questions

PySpark · 1SQL · 2Python · 1

Status	Title	Technology	Topic	Acceptance	Difficulty
○	12.Fix a slow groupBy on 2B rows	PySpark	Spark optimization	—	Hard
○	19.Cohort retention by signup month	SQL	Data modeling	—	Hard
○	20.Latest price as of each order	SQL	Data modeling	—	Medium
○	27.Top K events in a stream	Python	Aggregation	—	Hard

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