nxcals.api.extraction.data.builders.DataFrame.unpersist

DataFrame.unpersist(blocking: bool = False) → DataFrame

Marks the DataFrame as non-persistent, and remove all blocks for it from memory and disk.

New in version 1.3.0.

Changed in version 3.4.0: Supports Spark Connect.

Notes

blocking default has changed to False to match Scala in 2.0.

Parameters:

blocking (bool) – Whether to block until all blocks are deleted.

Returns:

Unpersisted DataFrame.

Return type:

DataFrame

Examples

>>> df = spark.range(1)
>>> df.persist()
DataFrame[id: bigint]
>>> df.unpersist()
DataFrame[id: bigint]
>>> df = spark.range(1)
>>> df.unpersist(True)
DataFrame[id: bigint]