Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/11349#discussion_r54056540
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveMetastoreCatalogSuite.scala
---
@@ -47,6 +47,17 @@ class HiveMetastoreCatalogSuite extends SparkFunSuite
with TestHiveSingleton {
logInfo(df.queryExecution.toString)
df.as('a).join(df.as('b), $"a.key" === $"b.key")
}
+
+ test("SPARK-13454: drop a table with a name starting with underscore") {
+ hiveContext.range(10).write.saveAsTable("_spark13454")
+ hiveContext.sql("drop table `_spark13454`")
+
+ hiveContext.range(10).write.saveAsTable("_spark13454")
+ hiveContext.sql("drop table default.`_spark13454`")
+
+ hiveContext.range(10).write.saveAsTable("spark13454")
+ hiveContext.sql("drop table spark13454")
+ }
--- End diff --
Let's add test case that
1. drops temporary tables
2. drops persistent and temporary tables with the same name
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