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https://issues.apache.org/jira/browse/HIVE-6641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-6641:
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Attachment: HIVE-6641.patch
Disable the key usage for decimal, add test. Alternativelty, since the keys are
only used for equality compares in binary form, and never deserialized, we
could discard trailing zeroes (we can disregard precision/scale). We can
consider it later...
> optimized HashMap keys won't work correctly with decimals
> ---------------------------------------------------------
>
> Key: HIVE-6641
> URL: https://issues.apache.org/jira/browse/HIVE-6641
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-6641.patch
>
>
> Decimal values with can be equal while having different byte representations
> (different precision/scale), so comparing bytes is not enough. For a quick
> fix, we can disable this for decimals
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