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Commit 5aeb7384 authored by Nick Pentreath's avatar Nick Pentreath Committed by Michael Armbrust
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[SPARK-16063][SQL] Add storageLevel to Dataset 

[SPARK-11905](https://issues.apache.org/jira/browse/SPARK-11905

) added support for `persist`/`cache` for `Dataset`. However, there is no user-facing API to check if a `Dataset` is cached and if so what the storage level is. This PR adds `getStorageLevel` to `Dataset`, analogous to `RDD.getStorageLevel`.

Updated `DatasetCacheSuite`.

Author: Nick Pentreath <nickp@za.ibm.com>

Closes #13780 from MLnick/ds-storagelevel.

Signed-off-by: default avatarMichael Armbrust <michael@databricks.com>
parent da9aeb0f
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