diff --git a/dbms/src/DataTypes/getLeastSupertype.cpp b/dbms/src/DataTypes/getLeastSupertype.cpp
index e9ede465a42..a4f2f8b187a 100644
--- a/dbms/src/DataTypes/getLeastSupertype.cpp
+++ b/dbms/src/DataTypes/getLeastSupertype.cpp
@@ -243,12 +243,6 @@ DataTypePtr getLeastSupertype(const DataTypes & types)
             max_datetime64_precision = std::max(least_decimal_precision, max_datetime64_precision);
 
             const UInt32 scale = DataTypeDateTime64::maxPrecision() - max_datetime64_precision;
-            if (max_datetime64_precision == 0)
-            {
-                throw Exception(getExceptionMessagePrefix(types) + " because some of them have no lossless convertion to DateTime64",
-                                ErrorCodes::NO_COMMON_TYPE);
-            }
-
             return std::make_shared<DataTypeDateTime64>(scale);
         }
     }
diff --git a/dbms/src/DataTypes/tests/gtest_data_type_get_common_type.cpp b/dbms/src/DataTypes/tests/gtest_data_type_get_common_type.cpp
index b1ae7c5a8d5..93f7eeef16d 100644
--- a/dbms/src/DataTypes/tests/gtest_data_type_get_common_type.cpp
+++ b/dbms/src/DataTypes/tests/gtest_data_type_get_common_type.cpp
@@ -129,9 +129,10 @@ INSTANTIATE_TEST_CASE_P(data_type,
             {"Date DateTime", "DateTime"},
             {"Date DateTime64(3)", "DateTime64(3)"},
             {"DateTime DateTime64(3)", "DateTime64(3)"},
-//            {"DateTime64(9) DateTime64(3)", "DateTime64(9)"},
-//            {"DateTime DateTime64(12)", nullptr},
-//            {"Date DateTime64(15)", nullptr},
+            {"DateTime DateTime64(0)", "DateTime64(0)"},
+            {"DateTime64(9) DateTime64(3)", "DateTime64(3)"},
+            {"DateTime DateTime64(12)", "DateTime64(8)"},
+            {"Date DateTime64(15)", "DateTime64(13)"},
 
             {"String FixedString(32) FixedString(8)", "String"},