yiguolei commented on code in PR #9972:
URL: https://github.com/apache/incubator-doris/pull/9972#discussion_r892010434


##########
regression-test/suites/correctness/test_current_timestamp.groovy:
##########
@@ -0,0 +1,55 @@
+// 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_current_timestamp", "correctness") {
+    def tableName = "test_current_timestamp"
+
+    sql """ DROP TABLE IF EXISTS ${tableName} """
+    sql """
+        CREATE TABLE ${tableName}
+        (
+            id TINYINT,
+            name CHAR(10) NOT NULL DEFAULT "zs",
+            dt_0 DATETIME,
+            dt_1 DATETIME DEFAULT CURRENT_TIMESTAMP
+        )
+        COMMENT "test current_timestamp table"
+        DISTRIBUTED BY HASH(id)
+        PROPERTIES("replication_num" = "1");
+    """
+    
+    // test insert into.
+    sql " insert into ${tableName} (id,name,dt_0) values 
(1,'aa',current_timestamp()); "
+    sql " insert into ${tableName} (id,name,dt_0) values 
(2,'bb',current_timestamp()); "
+    sql " insert into ${tableName} (id,name,dt_0) values 
(3,'cc',current_timestamp()); "
+    sql " insert into ${tableName} (id,name,dt_0) values 
(4,'dd',current_timestamp()); "
+
+    qt_insert_into """ select count(*) from ${tableName} where dt_0 = dt_1; """

Review Comment:
   Do not compare date time, compare to_Date(dt_0) = to_date(dt_1), because 
date time is very accurate and the value maybe different



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