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Posted to issues@spark.apache.org by "Yang Jie (Jira)" <ji...@apache.org> on 2022/04/24 03:04:00 UTC

[jira] [Created] (SPARK-39005) Introduce more functions to KVUtils

Yang Jie created SPARK-39005:
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             Summary: Introduce more functions to KVUtils
                 Key: SPARK-39005
                 URL: https://issues.apache.org/jira/browse/SPARK-39005
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.4.0
            Reporter: Yang Jie


Introduce 4 new functions
 * count：Counts the number of elements in the KVStoreView which satisfy a predicate.
 * foreach：Applies a function f to all values produced by KVStoreView.
 * mapToSeq：Maps all values of KVStoreView to new Seq using a transformation function.
 * size: The size of KVStoreView.

And use the above functions to simplify the code related to `KVStoreView`, and the above functions will release `LevelDB/RocksDBIterator` earlier.

 



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