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[SPARK-16433][SQL]Improve StreamingQuery.explain when no data arrives #14100

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zsxwing wants to merge 1 commit into from
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[SPARK-16433][SQL]Improve StreamingQuery.explain when no data arrives #14100

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2 changes: 1 addition & 1 deletion sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamExecution.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -477,7 +477,7 @@ class StreamExecution(
/** Expose for tests */
def explainInternal(extended: Boolean): String = {
if (lastExecution == null) {
"N/A"
"No physical plan. Waiting for data."
} else {
val explain = ExplainCommand(lastExecution.logical, extended = extended)
sparkSession.sessionState.executePlan(explain).executedPlan.executeCollect()
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4 changes: 2 additions & 2 deletions sql/core/src/test/scala/org/apache/spark/sql/streaming/FileStreamSourceSuite.scala
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Expand Up @@ -596,8 +596,8 @@ class FileStreamSourceSuite extends FileStreamSourceTest {
val q = df.writeStream.queryName("file_explain").format("memory").start()
.asInstanceOf[StreamExecution]
try {
assert("N/A" === q.explainInternal(false))
assert("N/A" === q.explainInternal(true))
assert("No physical plan. Waiting for data." === q.explainInternal(false))
assert("No physical plan. Waiting for data." === q.explainInternal(true))

val tempFile = Utils.tempFileWith(new File(tmp, "text"))
val finalFile = new File(src, tempFile.getName)
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4 changes: 2 additions & 2 deletions sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamSuite.scala
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Expand Up @@ -251,8 +251,8 @@ class StreamSuite extends StreamTest {
val q = df.writeStream.queryName("memory_explain").format("memory").start()
.asInstanceOf[StreamExecution]
try {
assert("N/A" === q.explainInternal(false))
assert("N/A" === q.explainInternal(true))
assert("No physical plan. Waiting for data." === q.explainInternal(false))
assert("No physical plan. Waiting for data." === q.explainInternal(true))

inputData.addData("abc")
q.processAllAvailable()
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