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Posted to issues@hive.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2016/12/02 23:03:58 UTC

[jira] [Commented] (HIVE-15335) Fast Decimal

    [ https://issues.apache.org/jira/browse/HIVE-15335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15716807#comment-15716807 ] 

Owen O'Malley commented on HIVE-15335:
--------------------------------------

Matt, Can you post a pull request please?

> Fast Decimal
> ------------
>
>                 Key: HIVE-15335
>                 URL: https://issues.apache.org/jira/browse/HIVE-15335
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-15335.01.patch
>
>
> Replace HiveDecimal implementation that currently represents the decimal internally as a BigDecimal with a faster version that does not allocate extra objects
> Replace HiveDecimalWritable implementation with a faster version that has new mutable* calls (e.g. mutableAdd, mutableEnforcePrecisionScale, etc) and stores the result as a fast decimal instead of a slow byte array containing a serialized BigInteger.
> Provide faster ways to serialize/deserialize decimals.



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