[jira] [Commented] (TAJO-836) create index support

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14050955#comment-14050955 ] 

ASF GitHub Bot commented on TAJO-836:
-------------------------------------

Github user jihoonson commented on a diff in the pull request:

    https://github.com/apache/tajo/pull/15#discussion_r14493424
  
    --- Diff: tajo-common/src/main/java/org/apache/tajo/conf/TajoConf.java ---
    @@ -150,6 +150,8 @@ public static int setDateOrder(int dateOrder) {
         SYSTEM_CONF_PATH("tajo.system-conf.path", EMPTY_VALUE),
         SYSTEM_CONF_REPLICA_COUNT("tajo.system-conf.replica-count", 20),
     
    +    INDEX_DIR("tajo.index.rootdir", "file:///tmp/tajo-${user.name}/index"),
    --- End diff --
    
    @hyunsik sorry for late reply. 
    I also intended that INDEX_DIR will be the directory structure. 
    Actually, several index files for each HDFS block are created in the specified index directory.


> create index support
> --------------------
>
>                 Key: TAJO-836
>                 URL: https://issues.apache.org/jira/browse/TAJO-836
>             Project: Tajo
>          Issue Type: Sub-task
>          Components: operator/expression, physical operator, planner/optimizer
>            Reporter: Jihoon Son
>            Assignee: Jihoon Son
>            Priority: Minor
>             Fix For: 0.9.0
>
>         Attachments: TAJO-836.patch, TAJO-836_2.patch, TAJO-836_3.patch
>
>
> The synopsis is as follows.
> {noformat}
> CREATE [ UNIQUE ] INDEX [ name ] ON table [ USING method ]
>     ( { column | ( expression ) } [ ASC | DESC ] [ NULLS { FIRST | LAST } ] [, ...] )
>     [ WHERE predicate ]
> {noformat}



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