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https://issues.apache.org/jira/browse/DRILL-6454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517979#comment-16517979
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ASF GitHub Bot commented on DRILL-6454:
---------------------------------------
vdiravka commented on a change in pull request #1314: DRILL-6454: Native MapR
DB plugin support for Hive MapR-DB json table
URL: https://github.com/apache/drill/pull/1314#discussion_r196598080
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/ExecConstants.java
##########
@@ -387,9 +387,12 @@ private ExecConstants() {
// TODO: We need to add a feature that enables storage plugins to add their
own options. Currently we have to declare
// in core which is not right. Move this option and above two mongo plugin
related options once we have the feature.
- public static final String HIVE_OPTIMIZE_SCAN_WITH_NATIVE_READERS =
"store.hive.optimize_scan_with_native_readers";
- public static final OptionValidator
HIVE_OPTIMIZE_SCAN_WITH_NATIVE_READERS_VALIDATOR =
- new BooleanValidator(HIVE_OPTIMIZE_SCAN_WITH_NATIVE_READERS);
+ public static final String HIVE_OPTIMIZE_PARQUET_SCAN_WITH_NATIVE_READER =
"store.hive.parquet.optimize_scan_with_native_readers";
Review comment:
The old name is not right in order of using several native readers for Hive
plugin.
But I will keep the old property name as Deprecated for backward
compatibility and will leave a comment that it should be removed starting from
next 1.15.0 release.
The new property name is also introduced, so both of them can enable
`parquet native reader`.
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> 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-impacting
> 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);
>
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