HIVE-27059: Wrong object inspector will be created when use collect_list and disable map-side aggregation

[uncleGen]

What changes were proposed in this pull request?

Query will fail when use collect_list (or collect_set) and disable map-side aggregationg:

Caused by: java.lang.ClassCastException: org.apache.hadoop.hive.serde2.lazybinary.LazyBinaryMap cannot be cast to java.util.Map
        at org.apache.hadoop.hive.serde2.objectinspector.StandardMapObjectInspector.getMap(StandardMapObjectInspector.java:85)
        at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.copyToStandardObject(ObjectInspectorUtils.java:437)
        at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.copyToStandardObject(ObjectInspectorUtils.java:362)
        at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFMkCollectionEvaluator.putIntoCollection(GenericUDAFMkCollectionEvaluator.java:154)
        at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFMkCollectionEvaluator.iterate(GenericUDAFMkCollectionEvaluator.java:120)
        at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator.aggregate(GenericUDAFEvaluator.java:192)
        at org.apache.hadoop.hive.ql.exec.GroupByOperator.updateAggregations(GroupByOperator.java:638)
        at org.apache.hadoop.hive.ql.exec.GroupByOperator.processAggr(GroupByOperator.java:877)
        at org.apache.hadoop.hive.ql.exec.GroupByOperator.processKey(GroupByOperator.java:721)
        at org.apache.hadoop.hive.ql.exec.GroupByOperator.process(GroupByOperator.java:787)

To reproduce this issue:

create table tb1 (a int, b string, c string);
insert into tb1 values (1, "100", "101");
insert into tb1 values (1, "102", "103");
insert into tb1 values (2, "200", "201");
set hive.map.aggr=false;
select a, collect_list(map("b",b,"c",c)) as col1 from tb1 group by a;
select a, collect_set(array(b, c)) as col1 from tb1 group by a;

Why are the changes needed?

Wrong object inspector will be created when use collect_list and disable map-side aggregation.

Does this PR introduce any user-facing change?

No

How was this patch tested?

UT and manual test

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
2 Code Smells

No Coverage information
No Duplication information

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
2 Code Smells

No Coverage information
No Duplication information

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Feel free to reach out on the dev@hive.apache.org list if the patch is in need of reviews.