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[SPARK-33853][SQL] EXPLAIN CODEGEN and BenchmarkQueryTest don't show subquery code #30859

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[SPARK-33853][SQL] EXPLAIN CODEGEN and BenchmarkQueryTest don't show subquery code #30859

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ea7def3
Fix an issue that EXPLAIN CODEGEN doesn't show subquery code.
sarutak Dec 18, 2020
b0d34e7
Add test.
sarutak Dec 19, 2020
09c6fd1
Add JIRA ID to the test.
sarutak Dec 19, 2020
26551bf
Remove SQLConf.ADAPTIVE_EXECUTION_ENABLED.key -> "false".
sarutak Dec 20, 2020
0f6a53b
Apply the change to BenchmarkQueryTest too.
sarutak Dec 20, 2020
022d363
Minor change.
sarutak Dec 20, 2020
c338832
Fix typo.
sarutak Dec 20, 2020
13cadeb
withTable -> withTempView
sarutak Dec 20, 2020
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17 changes: 12 additions & 5 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/debug/package.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -107,12 +107,19 @@ package object debug {
*/
def codegenStringSeq(plan: SparkPlan): Seq[(String, String, ByteCodeStats)] = {
val codegenSubtrees = new collection.mutable.HashSet[WholeStageCodegenExec]()
plan transform {
case s: WholeStageCodegenExec =>
codegenSubtrees += s
s
case s => s

def findSubtrees(plan: SparkPlan): Unit = {
plan transform {
case s: WholeStageCodegenExec =>
codegenSubtrees += s
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@maropu maropu Dec 20, 2020

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The code below has the same issue?

spark/sql/core/src/test/scala/org/apache/spark/sql/BenchmarkQueryTest.scala

Lines 65 to 70 in df2314b

val codegenSubtrees = new collection.mutable.HashSet[WholeStageCodegenExec]()
plan foreach {
case s: WholeStageCodegenExec =>
codegenSubtrees += s
case _ =>
}

s
case s =>
s.subqueries.foreach(findSubtrees)
s
}
}

findSubtrees(plan)
codegenSubtrees.toSeq.sortBy(_.codegenStageId).map { subtree =>
val (_, source) = subtree.doCodeGen()
val codeStats = try {
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19 changes: 19 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/ExplainSuite.scala
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Expand Up @@ -228,6 +228,25 @@ class ExplainSuite extends ExplainSuiteHelper with DisableAdaptiveExecutionSuite
}
}

test("SPARK-33853: explain codegen - check presence of subquery") {
withSQLConf(SQLConf.WHOLESTAGE_CODEGEN_ENABLED.key -> "true") {
withTable("df1") {
spark.range(1, 100)
.write
.format("parquet")
.mode("overwrite")
.saveAsTable("df1")
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@maropu maropu Dec 20, 2020

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nit: for better test performance, could you use a temporary view instead?


val sqlText = "EXPLAIN CODEGEN SELECT (SELECT min(id) FROM df1)"
val expectedText = "Found 3 WholeStageCodegen subtrees."

withNormalizedExplain(sqlText) { normalizedOutput =>
assert(normalizedOutput.contains(expectedText))
}
}
}
}

test("explain formatted - check presence of subquery in case of DPP") {
withTable("df1", "df2") {
withSQLConf(SQLConf.DYNAMIC_PARTITION_PRUNING_ENABLED.key -> "true",
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