[SPARK-29191][TESTS][SQL] Add tag ExtendedSQLTest for SQLQueryTestSuite

### What changes were proposed in this pull request?

This PR aims to add tag `ExtendedSQLTest` for `SQLQueryTestSuite`.
This doesn't affect our Jenkins test coverage.
Instead, this tag gives us an ability to parallelize them by splitting this test suite and the other suites.

### Why are the changes needed?

`SQLQueryTestSuite` takes 45 mins alone because it has many SQL scripts to run.

<img width="906" alt="time" src="https://user-images.githubusercontent.com/9700541/65353553-4af0f100-dba2-11e9-9f2f-386742d28f92.png">

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

```
build/sbt "sql/test-only *.SQLQueryTestSuite" -Dtest.exclude.tags=org.apache.spark.tags.ExtendedSQLTest
...
[info] SQLQueryTestSuite:
[info] ScalaTest
[info] Run completed in 3 seconds, 147 milliseconds.
[info] Total number of tests run: 0
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 0, failed 0, canceled 0, ignored 0, pending 0
[info] No tests were executed.
[info] Passed: Total 0, Failed 0, Errors 0, Passed 0
[success] Total time: 22 s, completed Sep 20, 2019 12:23:13 PM
```

Closes #25872 from dongjoon-hyun/SPARK-29191.

Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>

common/tags/src/test/java/org/apache/spark/tags/ExtendedSQLTest.java

@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.tags;
+
+import org.scalatest.TagAnnotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@TagAnnotation
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD, ElementType.TYPE})
+public @interface ExtendedSQLTest { }

sql/core/src/test/scala/org/apache/spark/sql/SQLQueryTestSuite.scala

@@ -34,6 +34,7 @@ import org.apache.spark.sql.execution.command.{DescribeColumnCommand, DescribeCo
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.test.SharedSparkSession
 import org.apache.spark.sql.types.StructType
+import org.apache.spark.tags.ExtendedSQLTest
 
 /**
  * End-to-end test cases for SQL queries.
@@ -104,6 +105,7 @@ import org.apache.spark.sql.types.StructType
  * Therefore, UDF test cases should have single input and output files but executed by three
  * different types of UDFs. See 'udf/udf-inner-join.sql' as an example.
  */
+@ExtendedSQLTest
 class SQLQueryTestSuite extends QueryTest with SharedSparkSession {
 
   import IntegratedUDFTestUtils._