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From "Jay Zhuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9988) Introduce leaf-only iterator
Date Tue, 08 Aug 2017 00:50:03 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16117669#comment-16117669
] 

Jay Zhuang commented on CASSANDRA-9988:
---------------------------------------

I created CASSANDRA-13748 for expSearch follow up. Rebased the patch to the current trunk
and squashed the changes:
| branch | uTest |
| [9988-trunk|https://github.com/cooldoger/cassandra/tree/9988-trunk] | [circleci#74 passed|https://circleci.com/gh/cooldoger/cassandra/74]
|

> Introduce leaf-only iterator
> ----------------------------
>
>                 Key: CASSANDRA-9988
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9988
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Benedict
>            Assignee: Jay Zhuang
>            Priority: Minor
>              Labels: patch
>             Fix For: 4.0
>
>         Attachments: 9988-3tests.png, 9988-data.png, 9988-result2.png, 9988-result3.png,
9988-result.png, 9988-test-result3.png, 9988-test-result-expsearch.xlsx, 9988-test-result-raw.png,
9988-test-result.xlsx, 9988-trunk-new.txt, 9988-trunk-new-update.txt, trunk-9988.txt
>
>
> In many cases we have small btrees, small enough to fit in a single leaf page. In this
case it _may_ be more efficient to specialise our iterator.



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