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From "Weizhong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CARBONDATA-1030) Support reading specified segment or carbondata file
Date Fri, 19 May 2017 09:20:04 GMT

    [ https://issues.apache.org/jira/browse/CARBONDATA-1030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017107#comment-16017107
] 

Weizhong commented on CARBONDATA-1030:
--------------------------------------

We can add mapreduce.input.carboninputformat.segmentnumbers on mapred-site.xml, so that we
can query from specified segments
{noformat}
<property>
  <name>mapreduce.input.carboninputformat.segmentnumbers</name>
  <value>0,1</value>
</property>
{noformat}

> Support reading specified segment or carbondata file
> ----------------------------------------------------
>
>                 Key: CARBONDATA-1030
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1030
>             Project: CarbonData
>          Issue Type: Improvement
>            Reporter: Jin Zhou
>            Priority: Minor
>
> We can query whole table in SQL way currently, but reading specified segments or data
files is useful in some scenarios such as incremental data processing.



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