Github user LantaoJin commented on the issue:
https://github.com/apache/spark/pull/20803
@cloud-fan, please review.
Now the test result is:
val df = spark.sql("xxxxx")
spark.range(10).count() // noting shows in UI
df.collect() // shows sql text "xxxxx"
df.count() // noting show in UI
df.show() // shows sql text "xxxxx"
df.filter(...).collect() // shows sql text "xxxxx"
df.filter(...).count() // noting shows
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