Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/12121#discussion_r58300635
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/command/DDLSuite.scala
---
@@ -19,34 +19,62 @@ package org.apache.spark.sql.execution.command
import java.io.File
+import org.scalatest.BeforeAndAfterEach
+
import org.apache.spark.sql.{AnalysisException, QueryTest, Row}
-import org.apache.spark.sql.catalyst.catalog.CatalogDatabase
+import org.apache.spark.sql.catalyst.TableIdentifier
+import org.apache.spark.sql.catalyst.catalog.{CatalogDatabase,
CatalogStorageFormat}
+import org.apache.spark.sql.catalyst.catalog.{CatalogTable,
CatalogTableType}
+import org.apache.spark.sql.catalyst.catalog.{CatalogTablePartition,
SessionCatalog}
+import
org.apache.spark.sql.catalyst.catalog.ExternalCatalog.TablePartitionSpec
import org.apache.spark.sql.test.SharedSQLContext
-class DDLSuite extends QueryTest with SharedSQLContext {
-
+class DDLSuite extends QueryTest with SharedSQLContext with
BeforeAndAfterEach {
private val escapedIdentifier = "`(.+)`".r
+ override def afterEach(): Unit = {
+ try {
+ sqlContext.sessionState.catalog.reset()
--- End diff --
Add a comment to explain what we are doing at here?
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