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Posted to issues@spark.apache.org by "Parth Chandra (Jira)" <ji...@apache.org> on 2022/02/18 19:15:00 UTC

[jira] [Created] (SPARK-38254) Improve vectorized loop for Packed encodings

Parth Chandra created SPARK-38254:
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             Summary: Improve vectorized loop for Packed encodings
                 Key: SPARK-38254
                 URL: https://issues.apache.org/jira/browse/SPARK-38254
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.2.1
            Reporter: Parth Chandra


In [https://github.com/apache/spark/blob/439975590cf4f21c2a548a2ac6231eb234e1a2f3/sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedRleValuesReader.java#L239] the vectorized reader is called one row at a time instead of calling multiple rows at a time. This loses the benefit of a vectorized reader and should be improved. 



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