William1104 commented on a change in pull request #24221: [SPARK-27248][SQL]
`refreshTable` should recreate cache with same cache name and storage level
URL: https://github.com/apache/spark/pull/24221#discussion_r286017778
##########
File path:
sql/hive/src/test/scala/org/apache/spark/sql/hive/CachedTableSuite.scala
##########
@@ -361,4 +350,81 @@ class CachedTableSuite extends QueryTest with
SQLTestUtils with TestHiveSingleto
assert(spark.sharedState.cacheManager.lookupCachedData(samePlan).isDefined)
}
}
+
+ test("SPARK-27248 refreshTable should recreate cache with same cache name
and storage level") {
+ // This section tests when a table is cached with its qualified name but
its is refreshed with
+ // its unqualified name.
+ withTempDatabase { db =>
+ withTable(s"$db.cachedTable") {
+ withCache(s"$db.cachedTable") {
+ // Create table 'cachedTable' in default db for testing purpose.
+ sql(s"CREATE TABLE $db.cachedTable AS SELECT 1 AS key")
+
+ // Cache the table 'cachedTable' in temp db with qualified table
name,
+ // and then check whether the table is cached with expected name
+ sql(s"CACHE TABLE $db.cachedTable")
+ assertCached(sql(s"select * from $db.cachedTable"),
s"`$db`.`cachedTable`")
Review comment:
Thanks. Will change the case.
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