Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/16493#discussion_r95051560
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala ---
@@ -565,4 +577,67 @@ class CachedTableSuite extends QueryTest with
SQLTestUtils with SharedSQLContext
case i: InMemoryRelation => i
}.size == 1)
}
+
+ test("SPARK-19093 Caching in side subquery") {
+ withTempView("t1") {
+ Seq(1).toDF("c1").createOrReplaceTempView("t1")
+ spark.catalog.cacheTable("t1")
+ val cachedPlan =
+ sql(
+ """
+ |SELECT * FROM t1
+ |WHERE
+ |NOT EXISTS (SELECT * FROM t1)
+ """.stripMargin).queryExecution.optimizedPlan
+ assert(
+ cachedPlan.collect {
+ case i: InMemoryRelation => i
+ }.size == 2)
+ spark.catalog.uncacheTable("t1")
+ }
+ }
+
+ test("SPARK-19093 scalar and nested predicate query") {
+
+
--- End diff --
Nit: remove these two lines
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