[case](restart_fe) add demo case for restart_fe test (apache#37091)

Issue Number: close #xxx

<!--Describe your changes.-->

---------

Co-authored-by: stephen <[email protected]>

regression-test/README.md

@@ -19,6 +19,7 @@ under the License.
 
 # 新加case注意事项
 
+## 常规 case
 1. 变量名前要写 def，否则是全局变量，并行跑的 case 的时候可能被其他 case 影响。
 
     Problematic code:
@@ -65,3 +66,13 @@ under the License.
     sql """sync"""
     sql """select count(*) from table """
     ```
+
+6. UDF 的 case，需要把对应的 jar 包拷贝到所有 BE 机器上。
+
+    [示例](https://github.com/apache/doris/blob/master/regression-test/suites/javaudf_p0/test_javaudf_case.groovy#L27)
+
+
+## 兼容性 case
+指重启 FE 测试或升级测试中，在初始集群上创建的资源或规则，在集群重启或升级后也能正常使用，比如权限、UDF等。
+这些 case 需要拆分成两个文件，load.groovy 和 xxxx.groovy，放到一个文件夹中并加上 `restart_fe` 组标签，[示例](https://github.com/apache/doris/pull/37118)。
+

regression-test/data/javaudf_p0/null/test.out

@@ -0,0 +1,26 @@
+-- This file is automatically generated. You should know what you did if you want to edit this
+-- !select_default --
+1
+2
+3
+4
+5
+6
+7
+8
+9
+
+-- !select --
+\N
+
+-- !select --
+\N
+\N
+\N
+\N
+\N
+\N
+\N
+\N
+\N
+

regression-test/suites/auth_up_down_p0/load.groovy

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-suite("test_upgrade_downgrade_prepare_auth","p0,auth") {
+suite("test_upgrade_downgrade_prepare_auth","p0,auth,restart_fe") {
 
     String user1 = 'test_upgrade_downgrade_compatibility_auth_user1'
     String user2 = 'test_upgrade_downgrade_compatibility_auth_user2'
@@ -45,7 +45,6 @@ suite("test_upgrade_downgrade_prepare_auth","p0,auth") {
     sql """CREATE ROLE ${role1}"""
     sql """CREATE ROLE ${role2}"""
 
-
     try_sql """drop table if exists ${dbName}.${tableName1}"""
     sql """drop database if exists ${dbName}"""
     sql """create database ${dbName}"""

regression-test/suites/auth_up_down_p0/test_grant_revoke_auth.groovy

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-suite("test_upgrade_downgrade_compatibility_auth","p0,auth") {
+suite("test_upgrade_downgrade_compatibility_auth","p0,auth,restart_fe") {
 
     sql """ADMIN SET FRONTEND CONFIG ('experimental_enable_workload_group' = 'true');"""
     sql """set experimental_enable_pipeline_engine = true;"""

regression-test/suites/javaudf_p0/null/load.groovy

@@ -0,0 +1,66 @@
+// 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.
+
+import org.codehaus.groovy.runtime.IOGroovyMethods
+
+import java.nio.charset.StandardCharsets
+import java.nio.file.Files
+import java.nio.file.Paths
+
+suite('test_javaudf_null_load', 'p0,restart_fe') {
+    // In order to cover the scenario that udf can be used normally after fe restart.
+    // We devided the origin case test_javaudf_null.groovy into two parts, load and query, this case is the first part.
+    // run load and query -> restart fe -> run query again,
+    // by this way, we can cover the scenario.
+    def tableName = 'test_javaudf_null'
+    def jarPath = """${context.file.parent}/../jars/java-udf-case-jar-with-dependencies.jar"""
+    scp_udf_file_to_all_be(jarPath)
+
+    log.info("Jar path: ${jarPath}".toString())
+    sql """ DROP TABLE IF EXISTS ${tableName} """
+    sql """DROP FUNCTION IF EXISTS java_udf_null_test(int);"""
+    sql """
+    CREATE TABLE IF NOT EXISTS ${tableName} (
+        `user_id`     INT         NOT NULL COMMENT ""
+        )
+        DISTRIBUTED BY HASH(user_id) PROPERTIES("replication_num" = "1");
+    """
+    StringBuilder sb = new StringBuilder()
+    int i = 1
+    for (; i < 9; i ++) {
+        sb.append("""
+            (${i}),
+        """)
+    }
+    sb.append("""
+            (${i})
+        """)
+    sql """ INSERT INTO ${tableName} VALUES
+            ${sb.toString()}
+        """
+
+    File path = new File(jarPath)
+    if (!path.exists()) {
+        throw new IllegalStateException("""${jarPath} doesn't exist! """)
+    }
+
+    sql """ CREATE FUNCTION java_udf_null_test(int) RETURNS int PROPERTIES (
+        "file"="file://${jarPath}",
+        "symbol"="org.apache.doris.udf.NullTest",
+        "type"="JAVA_UDF"
+    ); """
+}

regression-test/suites/javaudf_p0/null/test.groovy

@@ -0,0 +1,24 @@
+// 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.
+
+suite('test_javaudf_null_query', 'p0,restart_fe') {
+    def tableName = 'test_javaudf_null'
+    qt_select_default """ SELECT * FROM ${tableName} t ORDER BY user_id; """
+
+    qt_select ''' SELECT java_udf_null_test(1) result; '''
+    qt_select """ SELECT java_udf_null_test(user_id) result FROM ${tableName} ORDER BY result; """
+}