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https://issues.apache.org/jira/browse/ORC-46?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15233099#comment-15233099
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Lefty Leverenz commented on ORC-46:
-----------------------------------
Doc note: Eventually the documentation should be updated.
Now it just says: "If the ORC file writer selects a generic compression codec
(zlib or snappy), every part of the ORC file except for the Postscript is
compressed with that codec." And the Hive ORC documentation says: "The codec
can be Snappy, Zlib, or none."
LZO should also be added.
* [ORC docs -- Compression | http://orc.apache.org/docs/compression.html]
* [Hive ORC doc -- Compression |
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+ORC#LanguageManualORC-Compression]
> Reserve CompressionKind values for LZ4 and ZSTD
> -----------------------------------------------
>
> Key: ORC-46
> URL: https://issues.apache.org/jira/browse/ORC-46
> Project: Orc
> Issue Type: Improvement
> Reporter: David Phillips
> Assignee: David Phillips
> Fix For: 1.1.0
>
>
> We are going to start using ORC with LZ4 and ZSTD compression types in Presto
> (which has its own reader and soon its own writer). Registering these as
> official CompressionKind values now will avoid future compatibility issues.
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