pyspark.sql.functions.last¶
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pyspark.sql.functions.last(col: ColumnOrName, ignorenulls: bool = False) → pyspark.sql.column.Column¶ Aggregate function: returns the last value in a group.
The function by default returns the last values it sees. It will return the last non-null value it sees when ignoreNulls is set to true. If all values are null, then null is returned.
Notes
The function is non-deterministic because its results depends on the order of the rows which may be non-deterministic after a shuffle.