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https://issues.apache.org/jira/browse/HIVE-22515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17024796#comment-17024796
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Ramesh Kumar Thangarajan commented on HIVE-22515:
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Whenever we have an expression like `long column <compare/arithmetic operator>
decimal column`, we always cast long to decimal even if the decimal column can
be represented as decimal64. This prevents us from using Deicmal64 class of
operations that will be faster than the equivalent Decimal class of operations.
This Jira will implements cast from long to decimal64 that can help in more
optimizations in the decimal64 operations.
> Support cast to decimal64 in Vectorization
> ------------------------------------------
>
> Key: HIVE-22515
> URL: https://issues.apache.org/jira/browse/HIVE-22515
> Project: Hive
> Issue Type: Bug
> Reporter: Ramesh Kumar Thangarajan
> Assignee: Ramesh Kumar Thangarajan
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22515.5.patch, HIVE-22515.8.patch,
> HIVE-22515.9.patch
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Support cast to decimal64 in Vectorization
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