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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15335) Fast Decimal
Date Tue, 06 Dec 2016 11:11:36 GMT

     [ https://issues.apache.org/jira/browse/HIVE-15335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt McCline updated HIVE-15335:
--------------------------------
    Attachment:     (was: HIVE-15335.04.patch)

> 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, HIVE-15335.02.patch, HIVE-15335.03.patch, HIVE-15335.04.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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