hadoop-hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-417) Implement Indexing in Hive
Date Tue, 27 Jul 2010 21:47:22 GMT

    [ https://issues.apache.org/jira/browse/HIVE-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892946#action_12892946
] 

He Yongqiang commented on HIVE-417:
-----------------------------------

@Ashish
>>why is virtualcolumn class in the serde2 package?
will put it to ql.io package. I put it to serde2 package just because i thought it maybe needed
by the serde layer. Since all codes are almost done and it is not accessed by serde, 
it makes sense to move it to ql.
>>how is the file name populated
filename and block offset are all populated by record reader. filename is populated by looking
at the split path when we construct the record reader. Offset is generated at runtime by record
reader.

> Implement Indexing in Hive
> --------------------------
>
>                 Key: HIVE-417
>                 URL: https://issues.apache.org/jira/browse/HIVE-417
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Metastore, Query Processor
>    Affects Versions: 0.3.0, 0.3.1, 0.4.0, 0.6.0
>            Reporter: Prasad Chakka
>            Assignee: He Yongqiang
>         Attachments: hive-417.proto.patch, hive-417-2009-07-18.patch, hive-indexing-8-thrift-metastore-remodel.patch,
hive-indexing.3.patch, hive-indexing.5.thrift.patch, hive.indexing.11.patch, idx2.png, indexing_with_ql_rewrites_trunk_953221.patch
>
>
> Implement indexing on Hive so that lookup and range queries are efficient.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message