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Posted to issues@drill.apache.org by "Anton Gozhiy (JIRA)" <ji...@apache.org> on 2018/09/06 15:04:00 UTC

[jira] [Closed] (DRILL-6454) Native MapR DB plugin support for Hive MapR-DB json table

     [ https://issues.apache.org/jira/browse/DRILL-6454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anton Gozhiy closed DRILL-6454.
-------------------------------

Verified with Drill version 1.15.0-SNAPSHOT (commit fa0d78d16eaf35d30d95613913a5613b2a82280d)

> Native MapR DB plugin support for Hive MapR-DB json table
> ---------------------------------------------------------
>
>                 Key: DRILL-6454
>                 URL: https://issues.apache.org/jira/browse/DRILL-6454
>             Project: Apache Drill
>          Issue Type: New Feature
>          Components: Storage - Hive, Storage - MapRDB
>    Affects Versions: 1.13.0
>            Reporter: Vitalii Diravka
>            Assignee: Vitalii Diravka
>            Priority: Major
>              Labels: doc-complete, ready-to-commit
>             Fix For: 1.14.0
>
>
> Hive can create and query MapR-DB tables via maprdb-json-handler:
>  [https://maprdocs.mapr.com/home/Hive/ConnectingToMapR-DB.html]
> The aim of this Jira to implement Drill native reader for Hive MapR-DB tables (similar to parquet).
> Design proposal is:
>  - to use JsonTableGroupScan instead of HiveScan;
>  - to add storage planning rule to convert HiveScan to MapRDBGroupScan;
>  - to add system/session option to enable using of this native reader;
>  - native reader can be used only for Drill build with mapr profile (there is no reason to leverage it for default profile);
>  
> *For documentation:*
> two new options were added:
> store.hive.parquet.optimize_scan_with_native_reader: false,
> store.hive.maprdb_json.optimize_scan_with_native_reader: false,
> store.hive.parquet.optimize_scan_with_native_reader is new option used instead of store.hive.optimize_scan_with_native_readers. The latter is deprecated and will be removed in 1.15.
> (https://issues.apache.org/jira/browse/DRILL-6527).
>  



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