Jacek Laskowski created SPARK-20782:
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Summary: Dataset's isCached operator
Key: SPARK-20782
URL: https://issues.apache.org/jira/browse/SPARK-20782
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.3.0
Reporter: Jacek Laskowski
Priority: Trivial
It'd be very convenient to have {{isCached}} operator that would say whether a
query is cached in-memory or not.
It'd be as simple as the following snippet:
{code}
// val q2: DataFrame
spark.sharedState.cacheManager.lookupCachedData(q2.queryExecution.logical).isDefined
{code}
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