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From "Vlad Rozov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-6145) Implement Hive MapR-DB JSON handler.
Date Tue, 20 Mar 2018 21:48:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-6145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16407106#comment-16407106
] 

Vlad Rozov commented on DRILL-6145:
-----------------------------------

[~vitalii] The result will be different as {{hive-maprdb-json-handler}} will be part of the
uber {{drill-hive-exec-shaded}} jar.

> Implement Hive MapR-DB JSON handler. 
> -------------------------------------
>
>                 Key: DRILL-6145
>                 URL: https://issues.apache.org/jira/browse/DRILL-6145
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Storage - Hive, Storage - MapRDB
>    Affects Versions: 1.12.0
>            Reporter: Vitalii Diravka
>            Assignee: Vitalii Diravka
>            Priority: Major
>              Labels: doc-impacting, ready-to-commit
>             Fix For: 1.14.0
>
>
> Similar to "hive-hbase-storage-handler" to support querying MapR-DB Hive's external tables
it is necessary to add "hive-maprdb-json-handler".
> Use case:
>  # Create a table MapR-DB JSON table:
> {code}
> _> mapr dbshell_
> _maprdb root:> create /tmp/table/json_  (make sure /tmp/table exists)
> {code}
> -- insert data
> {code}
> insert /tmp/table/json --value '\{"_id":"movie0000002" , "title":"Developers on the Edge",
"studio":"Command Line Studios"}'
> insert /tmp/table/json --id movie0000003 --value '\{"title":"The Golden Master", "studio":"All-Nighter"}'
> {code} 
>  #  Create a Hive external table:
> {code}
> hive> CREATE EXTERNAL TABLE mapr_db_json_hive_tbl ( 
>     > movie_id string, title string, studio string) 
>     > STORED BY 'org.apache.hadoop.hive.maprdb.json.MapRDBJsonStorageHandler' 
>     > TBLPROPERTIES("maprdb.table.name" = "/tmp/table/json","maprdb.column.id" = "movie_id");
> {code}
>  
>  #  Use hive schema to query this table via Drill:
> {code}
> 0: jdbc:drill:> select * from hive.mapr_db_json_hive_tbl;
> {code}



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