cloud-fan commented on a change in pull request #32198:
URL: https://github.com/apache/spark/pull/32198#discussion_r619001681
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala
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@@ -1219,4 +1219,38 @@ class DataFrameReaderWriterSuite extends QueryTest with
SharedSparkSession with
}
}
}
+
+ test("SPARK-26164: Allow concurrent writers for multiple partitions and
buckets") {
+ withTable("t1", "t2") {
+ val df = spark.range(200).map(_ => {
+ val n = scala.util.Random.nextInt
Review comment:
can we use a fixed seed in the test? Otherwise there is a small
possibility that the distinct values are less than 3 and the fallback test
doesn't trigger.
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