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https://issues.apache.org/jira/browse/HIVE-6616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13943345#comment-13943345
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Alan Gates commented on HIVE-6616:
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This is a dangerous approach, as we make no guarantees to keep Orc's structure
the same across releases. For example, the HIVE-5317 work includes significant
changes to Orc's file structure.
It would be better to file a jira (or re-purpose this jira) to be: provide
simple classes to read and write Orc without forcing you to pull all of Hive's
jars into your code. This is much safer from a forward and backward
compatibility viewpoint and something we need to do anyway. If you are wanting
to run outside the JVM this obviously does not help you though.
> Document ORC file format to enable development of external converters to/from
> ORC/text files
> --------------------------------------------------------------------------------------------
>
> Key: HIVE-6616
> URL: https://issues.apache.org/jira/browse/HIVE-6616
> Project: Hive
> Issue Type: Bug
> Components: File Formats
> Affects Versions: 0.11.0, 0.12.0
> Reporter: Michael
>
> Please document the structure of ORC file in a way that it allow writing and
> reading such a file by external software. I would like to be able to create
> ORC files myself without help of Hive.
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