Boaz Ben-Zvi created DRILL-5665:
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Summary: planner.force_2phase.aggr Set to TRUE for HashAgg may
cause wrong results for VARIANCE and STD_DEV
Key: DRILL-5665
URL: https://issues.apache.org/jira/browse/DRILL-5665
Project: Apache Drill
Issue Type: Bug
Components: Execution - Relational Operators
Affects Versions: 1.11.0
Reporter: Boaz Ben-Zvi
Assignee: Boaz Ben-Zvi
Fix For: 1.11.0
*planner.force_2phase.aggr* was added for testing the hash 2-phase spill to
disk aggregation implementation. However, if it is set to true, stream
aggregate will run in two phase too and return wrong results for some functions
such as variance() and std_dev().
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