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Posted to issues@spark.apache.org by "Jacek Laskowski (JIRA)" <ji...@apache.org> on 2017/05/17 07:35:04 UTC

[jira] [Created] (SPARK-20782) Dataset's isCached operator

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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