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Posted to dev@parquet.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/11/02 14:51:00 UTC

[jira] [Commented] (PARQUET-2196) Support LZ4_RAW codec

    [ https://issues.apache.org/jira/browse/PARQUET-2196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17627757#comment-17627757 ] 

ASF GitHub Bot commented on PARQUET-2196:
-----------------------------------------

shangxinli commented on PR #1000:
URL: https://github.com/apache/parquet-mr/pull/1000#issuecomment-1300583034

   LGTM, let's see if there are comments from others, otherwise we can merge.




> Support LZ4_RAW codec
> ---------------------
>
>                 Key: PARQUET-2196
>                 URL: https://issues.apache.org/jira/browse/PARQUET-2196
>             Project: Parquet
>          Issue Type: Improvement
>          Components: parquet-mr
>            Reporter: Gang Wu
>            Priority: Major
>
> There is a long history about the LZ4 interoperability of parquet files between parquet-mr and parquet-cpp (which is now in the Apache Arrow). Attached links are the evidence. In short, a new LZ4_RAW codec type has been introduced since parquet format v2.9.0. However, only parquet-cpp supports LZ4_RAW. The parquet-mr library still uses the old Hadoop-provided LZ4 codec and cannot read parquet files with LZ4_RAW.



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