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https://issues.apache.org/jira/browse/HIVE-2417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13094297#comment-13094297
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He Yongqiang commented on HIVE-2417:
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bq.The 'create' adds one file, and the insert adds another file.
sorry, i thought you are doing an "insert overwrite ", can u do 2 inserts?
bq.This is needed so that the rcfiles in the target table are compressed with
Bzip2. Do you mean that we should be using Default compression codec instead?
Fine with me but why is that important?
Yes. i mean if you remove this line and keep the line "set
hive.exec.compress.output = true;". The output will be compressed using
DefaultCodec. The reason is that BZip2 may not installed for all hive users/dev.
> Merging of compressed rcfiles fails to write the valuebuffer part correctly
> ---------------------------------------------------------------------------
>
> Key: HIVE-2417
> URL: https://issues.apache.org/jira/browse/HIVE-2417
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Krishna Kumar
> Assignee: Krishna Kumar
> Attachments: HIVE-2417.v0.patch
>
>
> The blockmerge task does not create proper rc files when merging compressed
> rc files as the valuebuffer writing is incorrect.
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