Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/21222#discussion_r206342230
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/debug/package.scala ---
@@ -88,23 +100,72 @@ package object debug {
}
}
+ /**
+ * Get WholeStageCodegenExec subtrees and the codegen in a query plan
into one String
+ *
+ * @param query the streaming query for codegen
+ * @return single String containing all WholeStageCodegen subtrees and
corresponding codegen
+ */
+ def codegenString(query: StreamingQuery): String = {
+ try {
+ val w = asStreamExecution(query)
+ if (w.lastExecution != null) {
+ codegenString(w.lastExecution.executedPlan)
+ } else {
+ "No physical plan. Waiting for data."
+ }
+ } catch {
--- End diff --
ditto
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