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https://issues.apache.org/jira/browse/DRILL-6563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16528349#comment-16528349
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Khurram Faraaz commented on DRILL-6563:
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HASH_PARTITION_SENDER and HASH_JOIN operators take up most of the time in the
query profile, and there are extra
BroadcastExchange operators in the (slow) query plan.
> TPCDS query 10 has regressed
> -----------------------------
>
> Key: DRILL-6563
> URL: https://issues.apache.org/jira/browse/DRILL-6563
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Affects Versions: 1.14.0
> Reporter: Khurram Faraaz
> Priority: Major
> Attachments: 24ca3c6c-90e1-a4bf-6c6f-3f981fa2d043.sys.drill,
> query10.fast_plan_old_commit, tpcds_query_10_plan_slow_140d09e.pdf,
> tpcds_query_plan_10_140d09e.txt
>
>
> TPC-DS query 10 has regressed in performance from taking 3.5 seconds to
> execute on Apache Drill 1.14.0 commit b92f599 , to 07 min 51.851 sec to
> complete execution on Apache Drill 1.14.0 commit 140d09e. Query was executed
> over SF1 parquet views on a 4 node cluster.
> Query plan from old and newer commit is attached here, with the query profile
> from newer commit.
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