Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/spark/pull/2381#discussion_r17528957
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/CachedTableSuite.scala ---
@@ -119,4 +119,20 @@ class CachedTableSuite extends QueryTest {
}
assert(!TestSQLContext.isCached("testData"), "Table 'testData' should
not be cached")
}
+
+ test("ADD CACHE TABLE tableName AS SELECT Star Table") {
+ TestSQLContext.sql("ADD CACHE TABLE testCacheTable AS SELECT * FROM
testData")
+ TestSQLContext.sql("SELECT * FROM testCacheTable WHERE key =
1").collect()
+ TestSQLContext.uncacheTable("testCacheTable")
+ }
+
+ test("'ADD CACHE TABLE tableName AS SELECT ..'") {
+ TestSQLContext.sql("ADD CACHE TABLE testCacheTable AS SELECT * FROM
testData")
+ TestSQLContext.table("testCacheTable").queryExecution.executedPlan
match {
+ case _: InMemoryColumnarTableScan => // Found evidence of caching
--- End diff --
OK
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