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https://issues.apache.org/jira/browse/PARQUET-1996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17298262#comment-17298262
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ASF GitHub Bot commented on PARQUET-1996:
-----------------------------------------
emkornfield commented on a change in pull request #168:
URL: https://github.com/apache/parquet-format/pull/168#discussion_r590639574
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File path: src/main/thrift/parquet.thrift
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@@ -481,9 +481,10 @@ enum CompressionCodec {
SNAPPY = 1;
GZIP = 2;
LZO = 3;
- BROTLI = 4; // Added in 2.4
- LZ4 = 5; // Added in 2.4
- ZSTD = 6; // Added in 2.4
+ BROTLI = 4; // Added in 2.4
+ LZ4 = 5; // DEPRECATED (Added in 2.4)
+ ZSTD = 6; // Added in 2.4
+ LZ4_RAW = 7; // Added in 2.9
Review comment:
I don't think we should be too hasty to add LZ4 back into the spec, or
at least we should narrow the scope. The integration of LZ4 with arrow has
exposed problematic java implementations of LZ4:
https://github.com/apache/arrow/pull/8949#issuecomment-794124675
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> [Format] Add interoperable LZ4 codec, deprecate existing LZ4 codec
> ------------------------------------------------------------------
>
> Key: PARQUET-1996
> URL: https://issues.apache.org/jira/browse/PARQUET-1996
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-format
> Reporter: Antoine Pitrou
> Priority: Major
>
> The current LZ4 codec is non-interoperable for reasons explained in details
> on the parquet-dev mailing-list:
> https://mail-archives.apache.org/mod_mbox/parquet-dev/202102.mbox/%3c20210216151401.7647ce37@fsol%3e
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