Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/12099#discussion_r58243106
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/debug/package.scala ---
@@ -81,29 +100,11 @@ package object debug {
* WholeStageCodegen subtree).
*/
def debugCodegen(): Unit = {
- debugPrint(debugCodegenString())
+ debugPrint(codegenString(query.queryExecution.executedPlan))
}
/** Visible for testing. */
- def debugCodegenString(): String = {
- val plan = query.queryExecution.executedPlan
- val codegenSubtrees = new
collection.mutable.HashSet[WholeStageCodegen]()
- plan transform {
- case s: WholeStageCodegen =>
- codegenSubtrees += s
- s
- case s => s
- }
- var output = s"Found ${codegenSubtrees.size} WholeStageCodegen
subtrees.\n"
- for ((s, i) <- codegenSubtrees.toSeq.zipWithIndex) {
- output += s"== Subtree ${i + 1} / ${codegenSubtrees.size} ==\n"
- output += s
- output += "\nGenerated code:\n"
- val (_, source) = s.doCodeGen()
- output += s"${CodeFormatter.format(source)}\n"
- }
- output
- }
+ def debugCodegenString(): String =
codegenString(query.queryExecution.executedPlan)
--- End diff --
It is still used in `DebuggingSuite` since I didn't change that testcase.
```
val res = sqlContext.range(10).groupBy("id").count().debugCodegenString()
```
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