Dechang Gu created DRILL-5468:
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Summary: THCH Q18 regressed ~3x due to execution plan changes
Key: DRILL-5468
URL: https://issues.apache.org/jira/browse/DRILL-5468
Project: Apache Drill
Issue Type: Bug
Components: Functions - Drill
Affects Versions: 1.11.0
Environment: 10+1 node ucs-micro cluster RHEL6.4
Reporter: Dechang Gu
Assignee: Jinfeng Ni
Fix For: 1.11.0
In a regular regression test on Drill master (commit id 841ead4) TPCH Q18 on
SF100 parquet dataset took ~81 secs, while the same query on 1.10.0 took only
~27 secs. The query time on the commit adbf363 which is right before 841ead4
is ~32 secs.
Profiles shows the plans for the query changed quite a bit (profiles will be
uploaded)
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