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https://issues.apache.org/jira/browse/SPARK-38013?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-38013:
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Component/s: Tests
> AQE can change bhj to smj if no extra shuffle introduce
> -------------------------------------------------------
>
> Key: SPARK-38013
> URL: https://issues.apache.org/jira/browse/SPARK-38013
> Project: Spark
> Issue Type: Sub-task
> Components: SQL, Tests
> Affects Versions: 3.3.0
> Reporter: XiDuo You
> Assignee: XiDuo You
> Priority: Major
> Fix For: 3.3.0, 3.2.2
>
>
> An example to reproduce the bug.
> {code:java}
> create table t1 as select 1 c1, 2 c2;
> create table t2 as select 1 c1, 2 c2;
> create table t3 as select 1 c1, 2 c2;
> set spark.sql.adaptive.autoBroadcastJoinThreshold=-1;
> select /*+ merge(t3) */ * from t1
> left join (
> select c1 as c from t3
> ) t3 on t1.c1 = t3.c
> left join (
> select /*+ repartition(c1) */ c1 from t2
> ) t2 on t1.c1 = t2.c1;
> {code}
> The key to produce this bug is that a bhj convert to smj/shj without
> introducing extra shuffe and AQE does not think the join can be planned as
> bhj.
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