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Posted to issues@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2015/03/21 01:41:38 UTC

[jira] [Updated] (HIVE-10038) Add Calcite's ProjectMergeRule.

     [ https://issues.apache.org/jira/browse/HIVE-10038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ashutosh Chauhan updated HIVE-10038:
------------------------------------
    Attachment: HIVE-10038.patch

> Add Calcite's ProjectMergeRule.
> -------------------------------
>
>                 Key: HIVE-10038
>                 URL: https://issues.apache.org/jira/browse/HIVE-10038
>             Project: Hive
>          Issue Type: New Feature
>          Components: CBO, Logical Optimizer
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-10038.patch
>
>
> Helps to improve latency by shortening operator pipeline. Folds adjacent projections in one.



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