class Window extends AnyRef
Utility functions for defining window in DataFrames.
// PARTITION BY country ORDER BY date ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW Window.partitionBy("country").orderBy("date") .rowsBetween(Window.unboundedPreceding, Window.currentRow) // PARTITION BY country ORDER BY date ROWS BETWEEN 3 PRECEDING AND 3 FOLLOWING Window.partitionBy("country").orderBy("date").rowsBetween(-3, 3)
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1.4.0
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(Since version 9)