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https://issues.apache.org/jira/browse/HIVE-5022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13754312#comment-13754312
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Teddy Choi commented on HIVE-5022:
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[~jdere] I expect HIVE-3976 will make sense with HIVE-5022. It looks great.
I'll check whether they work together well and meet SQL specifications in next
week.
> Decimal Arithmetic generates NULL value
> ---------------------------------------
>
> Key: HIVE-5022
> URL: https://issues.apache.org/jira/browse/HIVE-5022
> Project: Hive
> Issue Type: Bug
> Components: Types
> Affects Versions: 0.11.0
> Environment: Hortonworks 1.3 running Hive 0.11.0.1.3.0.0-107
> Reporter: Kevin Soo Hoo
> Assignee: Teddy Choi
> Attachments: HIVE-5022.1.patch.txt, HIVE-5022.2.patch.txt,
> HIVE-5022.3.patch.txt
>
>
> When a decimal division is the first operation, the quotient cannot be
> multiplied in a subsequent calculation. Instead, a NULL is returned.
> The following yield NULL results:
> select (cast (4.53 as decimal) / cast(25.86 as decimal)) * cast(0.087 as
> decimal) from <tablename> limit 1;
> select cast (4.53 as decimal) / cast(25.86 as decimal) * cast(0.087 as
> decimal) from <tablename> limit 1;
> If we move the multiplication operation to be first, then it will
> successfully calculate the result.
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