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[SPARK-38013][SQL][TEST] AQE can change bhj to smj if no extra shuffle introduce #35353

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[SPARK-38013][SQL][TEST] AQE can change bhj to smj if no extra shuffle introduce #35353

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25b18ee
AQE can change bhj to smj if no extra shuffle introduce
ulysses-you Jan 28, 2022
bdae13c
address comment
ulysses-you Jan 28, 2022
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23 changes: 23 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/execution/adaptive/AdaptiveQueryExecSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -187,6 +187,29 @@ class AdaptiveQueryExecSuite
}
}

test("Change broadcast join to merge join") {
withTable("t1", "t2") {
withSQLConf(
SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "10000",
SQLConf.ADAPTIVE_AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1",
SQLConf.SHUFFLE_PARTITIONS.key -> "1") {
sql("CREATE TABLE t1 USING PARQUET AS SELECT 1 c1")
sql("CREATE TABLE t2 USING PARQUET AS SELECT 1 c1")
val (plan, adaptivePlan) = runAdaptiveAndVerifyResult(
"""
|SELECT * FROM (
| SELECT distinct c1 from t1
| ) tmp1 JOIN (
| SELECT distinct c1 from t2
| ) tmp2 ON tmp1.c1 = tmp2.c1
|""".stripMargin)
assert(findTopLevelBroadcastHashJoin(plan).size == 1)
assert(findTopLevelBroadcastHashJoin(adaptivePlan).isEmpty)
assert(findTopLevelSortMergeJoin(adaptivePlan).size == 1)
}
}
}

test("Reuse the parallelism of coalesced shuffle in local shuffle read") {
withSQLConf(
SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "true",
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