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https://issues.apache.org/jira/browse/HIVE-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534290#comment-13534290
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Gunther Hagleitner commented on HIVE-2693:
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Wrong again, but getting closer. The length of strings/byte arrays are encoded
with trailing "\0" in BinarySortableSerDe. So the encoding should be
<sign byte><sale int><string of digits>
<sign byte>: 1 for >= 0, 0 for <0
<scale>: scale integer if sign byte 1, -scale integer otherwise
<string of digits>: Zero terminated string of digits
I'm trying this out right now.
> Add DECIMAL data type
> ---------------------
>
> Key: HIVE-2693
> URL: https://issues.apache.org/jira/browse/HIVE-2693
> Project: Hive
> Issue Type: New Feature
> Components: Query Processor, Types
> Affects Versions: 0.10.0
> Reporter: Carl Steinbach
> Assignee: Prasad Mujumdar
> Attachments: 2693_7.patch, 2693_8.patch, 2693_fix_all_tests1.patch,
> HIVE-2693-10.patch, HIVE-2693-11.patch, HIVE-2693-1.patch.txt,
> HIVE-2693-all.patch, HIVE-2693-fix.patch, HIVE-2693.patch,
> HIVE-2693-take3.patch, HIVE-2693-take4.patch
>
>
> Add support for the DECIMAL data type. HIVE-2272 (TIMESTAMP) provides a nice
> template for how to do this.
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