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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2021/11/02 22:15:00 UTC
[jira] [Commented] (SPARK-36879) Support Parquet v2 data page
encodings for the vectorized path
[ https://issues.apache.org/jira/browse/SPARK-36879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17437628#comment-17437628 ]
Apache Spark commented on SPARK-36879:
--------------------------------------
User 'parthchandra' has created a pull request for this issue:
https://github.com/apache/spark/pull/34471
> Support Parquet v2 data page encodings for the vectorized path
> --------------------------------------------------------------
>
> Key: SPARK-36879
> URL: https://issues.apache.org/jira/browse/SPARK-36879
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Chao Sun
> Priority: Major
>
> Currently Spark only support Parquet V1 encodings (i.e., PLAIN/DICTIONARY/RLE) in the vectorized path, and throws exception otherwise:
> {code}
> java.lang.UnsupportedOperationException: Unsupported encoding: DELTA_BYTE_ARRAY
> {code}
> It will be good to support v2 encodings too, including DELTA_BINARY_PACKED, DELTA_LENGTH_BYTE_ARRAY, DELTA_BYTE_ARRAY as well as BYTE_STREAM_SPLIT as listed in https://github.com/apache/parquet-format/blob/master/Encodings.md
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