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https://issues.apache.org/jira/browse/SPARK-37974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17479641#comment-17479641
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Apache Spark commented on SPARK-37974:
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User 'parthchandra' has created a pull request for this issue:
https://github.com/apache/spark/pull/35262
> Implement vectorized DELTA_BYTE_ARRAY and DELTA_LENGTH_BYTE_ARRAY encodings
> for Parquet V2 support
> ---------------------------------------------------------------------------------------------------
>
> Key: SPARK-37974
> URL: https://issues.apache.org/jira/browse/SPARK-37974
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Parth Chandra
> Priority: Major
>
> SPARK-36879 implements the DELTA_BINARY_PACKED encoding which is for integer
> values, but does not implement the DELTA_BYTE_ARRAY encoding which is for
> string values. DELTA_BYTE_ARRAY encoding also requires the
> DELTA_LENGTH_BYTE_ARRAY encoding. Both these encodings need vectorized
> versions as the current implementation simply calls the non-vectorized
> Parquet library methods.
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