[enhancement](regression-test) Add regression test about modifying partition and distribution column

Author: Hastyshell

regression-test/suites/schema_change_p0/test_modify_partition_or_distribution_column.groovy

@@ -0,0 +1,49 @@
+// 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_modify_partition_or_distribution_column") {
+    def tblName = "test_modify_partition_or_distribution_column"
+    sql """ DROP TABLE IF EXISTS ${tblName} """
+    sql """
+       CREATE TABLE IF NOT EXISTS ${tblName}
+        (
+            k1 DATE,
+            k2 INT DEFAULT '10',
+            k3 bigint,
+            k4 VARCHAR(32) DEFAULT '',
+            v1 BIGINT DEFAULT '0'
+        )
+        UNIQUE  KEY(k1, k2, k3, k4)
+        PARTITION BY RANGE(`k2`)
+                (
+                    partition `old_p1` values [("1"), ("2")),
+                    partition `old_p2` values [("2"), ("3"))
+                )
+        DISTRIBUTED BY HASH(k3, k4) BUCKETS 5
+        PROPERTIES("replication_num" = "1", "light_schema_change" = "true"); 
+    """
+
+    test {
+        sql """ ALTER TABLE ${tblName} MODIFY COLUMN k2 INT NOT NULL """
+        exception "Can not modify partition or distribution column"
+    }
+
+    test {
+        sql """ ALTER TABLE ${tblName} MODIFY COLUMN k3 largeint """
+        exception "Can not modify partition or distribution column"
+    }
+}

regression-test/suites/schema_change_p0/test_varchar_schema_change.groovy

@@ -64,6 +64,12 @@ suite ("test_varchar_schema_change") {
         //     exception "Nothing is changed"
         // }
 
+        test {
+            sql """ alter table ${tableName} modify column c2 varchar(65536) """
+
+            exception "VARCHAR size must be <= 65533"
+        }
+
         sql """ alter table ${tableName} modify column c2 varchar(30) """
         int max_try_secs = 300
         Awaitility.await().atMost(max_try_secs, TimeUnit.SECONDS).with().pollDelay(100, TimeUnit.MILLISECONDS).await().until(() -> {