Zhihua Deng created HIVE-25582:
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Summary: Empty result when using offset limit with MR
Key: HIVE-25582
URL: https://issues.apache.org/jira/browse/HIVE-25582
Project: Hive
Issue Type: Bug
Components: Operators
Affects Versions: 4.0.0
Reporter: Zhihua Deng
Assignee: Zhihua Deng
The _mr.ObjectCache_ caches nothing, every time when the limit [retrieving
global counter from the
cache|https://github.com/apache/hive/blob/7b3ecf617a6d46f48a3b6f77e0339fd4ad95a420/ql/src/java/org/apache/hadoop/hive/ql/exec/LimitOperator.java#L150-L161],
a new AtomicInteger will be returned. This make offset _<=
currentCountForAllTasksInt_ always __ be __ evaluated to false_,_ as _offset >
0_, the operator will skip all rows.
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