[
https://issues.apache.org/jira/browse/HIVE-25553?focusedWorklogId=669467&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-669467
]
ASF GitHub Bot logged work on HIVE-25553:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Oct/21 11:35
Start Date: 25/Oct/21 11:35
Worklog Time Spent: 10m
Work Description: warriersruthi commented on a change in pull request
#2689:
URL: https://github.com/apache/hive/pull/2689#discussion_r735511241
##########
File path:
itests/hive-unit/src/test/java/org/apache/hive/jdbc/TestJdbcWithMiniLlapVectorArrow.java
##########
@@ -64,8 +65,8 @@ public static void beforeTest() throws Exception {
return new LlapArrowRowInputFormat(Long.MAX_VALUE);
}
- // Currently MAP type is not supported. Add it back when Arrow 1.0 is
released.
- // See: SPARK-21187
+ // Currently, loading from a text file gives errors with Map dataType.
+ // This needs to be fixed when adding support for non-ORC writes (text and
parquet) for the llap-ext-client.
Review comment:
Its working now
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Issue Time Tracking
-------------------
Worklog Id: (was: 669467)
Time Spent: 1.5h (was: 1h 20m)
> Support Map data-type natively in Arrow format
> ----------------------------------------------
>
> Key: HIVE-25553
> URL: https://issues.apache.org/jira/browse/HIVE-25553
> Project: Hive
> Issue Type: Improvement
> Components: llap, Serializers/Deserializers
> Reporter: Adesh Kumar Rao
> Assignee: Adesh Kumar Rao
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Currently ArrowColumnarBatchSerDe converts map datatype as a list of structs
> data-type (where stuct is containing the key-value pair of the map). This
> causes issues when reading Map datatype using llap-ext-client as it reads a
> list of structs instead.
> HiveWarehouseConnector which uses the llap-ext-client throws exception when
> the schema (containing Map data type) is different from actual data (list of
> structs).
>
> Fixing this issue requires upgrading arrow version (where map data-type is
> supported), modifying ArrowColumnarBatchSerDe and corresponding
> Serializer/Deserializer to not use list as a workaround for map and use the
> arrow map data-type instead.
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