Backend

VL (Velox)

Bug description

Aggregate window gets the wrong result

-- Data
(for { x <- 1 to 4500 } yield { (x,1) }).toDF("id", "order_num")
     
-- Query
SELECT
  id,
  SUM(num) OVER(ORDER BY num DESC) AS sum
FROM test

Expect: sum: 4500

Actual: sum: 4096 ... 4500

Spark version

None

Spark configurations

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System information

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Relevant logs

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