hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "bharath v (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1643) support range scans and non-key columns in HBase filter pushdown
Date Sat, 28 Jul 2012 10:50:35 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13424317#comment-13424317
] 

bharath v commented on HIVE-1643:
---------------------------------

Currently the IndexPredicateAnalyzer.analyzePredicate() accepts only pure conjunctions (not
sure why, can you please explain)! I haven't modified that functionality as I thought it might
effect other packages (especially ql.index). Thats the reason only ANDs are getting pushed.

                
> support range scans and non-key columns in HBase filter pushdown
> ----------------------------------------------------------------
>
>                 Key: HIVE-1643
>                 URL: https://issues.apache.org/jira/browse/HIVE-1643
>             Project: Hive
>          Issue Type: Improvement
>          Components: HBase Handler
>    Affects Versions: 0.9.0
>            Reporter: John Sichi
>            Assignee: bharath v
>              Labels: patch
>         Attachments: HIVE-1643.patch, hbase_handler.patch
>
>
> HIVE-1226 added support for WHERE rowkey=3.  We would like to support WHERE rowkey BETWEEN
10 and 20, as well as predicates on non-rowkeys (plus conjunctions etc).  Non-rowkey conditions
can't be used to filter out entire ranges, but they can be used to push the per-row filter
processing as far down as possible.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message