Re: [PR] [Fix](exec) Fix date dict infinite loop. [doris]

[via GitHub]

github-actions[bot] commented on code in PR #25570:
URL: https://github.com/apache/doris/pull/25570#discussion_r1363333918


##########
be/src/vec/exec/format/orc/vorc_reader.cpp:
##########
@@ -149,7 +149,7 @@ OrcReader::OrcReader(RuntimeProfile* profile, RuntimeState* 
state,
     TimezoneUtils::find_cctz_time_zone(ctz, _time_zone);
     VecDateTimeValue t;
     t.from_unixtime(0, ctz);
-    _offset_days = t.day() == 31 ? 0 : 1;
+    _offset_days = t.day() == 31 ? -1 : 0; // If 1969-12-31, then returns -1.

Review Comment:
   warning: 31 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
       _offset_days = t.day() == 31 ? -1 : 0; // If 1969-12-31, then returns -1.
                                 ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);

Review Comment:
   warning: 745094 is a magic number; consider replacing it with a named 
constant [readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
                                                          ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);

Review Comment:
   warning: 2039 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
                                         ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);

Review Comment:
   warning: 2040 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
                                         ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
                        ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 0000/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(1));
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 01, 01) == 1);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(0));

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(0));
                        ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 0000/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(1));
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 01, 01) == 1);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(0));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(1));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // Invalid date 0000/00/01
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 0);
+        EXPECT_TRUE(date_v2.day() == 0);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 0, 1) == 0);
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 9999/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(3652424));

Review Comment:
   warning: 3652424 is a magic number; consider replacing it with a named 
constant [readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(date_v2.get_date_from_daynr(3652424));
                                                   ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
                       ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);

Review Comment:
   warning: 31 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
                                                   ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
                       ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
                       ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);

Review Comment:
   warning: 2040 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(date_v2.year() == 2040);
                                         ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));

Review Comment:
   warning: 2039 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
                                                                           ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));

Review Comment:
   warning: 745095 is a magic number; consider replacing it with a named 
constant [readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
                                                   ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));

Review Comment:
   warning: 745094 is a magic number; consider replacing it with a named 
constant [readability-magic-numbers]
   ```cpp
           
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
                                                                              ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);

Review Comment:
   warning: 745095 is a magic number; consider replacing it with a named 
constant [readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
                                                          ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);

Review Comment:
   warning: 12 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
                                               ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
                       ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));

Review Comment:
   warning: 2040 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
                                                                            ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
                        ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 0000/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(1));
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 01, 01) == 1);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
                       ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));

Review Comment:
   warning: 745095 is a magic number; consider replacing it with a named 
constant [readability-magic-numbers]
   ```cpp
           
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
                                                                               ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 0000/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(1));
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 01, 01) == 1);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(0));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(1));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // Invalid date 0000/00/01
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 0);
+        EXPECT_TRUE(date_v2.day() == 0);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 0, 1) == 0);
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 9999/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(3652424));
+        EXPECT_TRUE(date_v2.year() == 9999);
+        EXPECT_TRUE(date_v2.month() == 12);

Review Comment:
   warning: 12 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(date_v2.month() == 12);
                                          ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 0000/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(1));
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 01, 01) == 1);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(0));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(1));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // Invalid date 0000/00/01
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 0);
+        EXPECT_TRUE(date_v2.day() == 0);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 0, 1) == 0);
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 9999/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(3652424));
+        EXPECT_TRUE(date_v2.year() == 9999);

Review Comment:
   warning: 9999 is a magic number; consider replacing it with a named constant 
[readability-magic-numbers]
   ```cpp
           EXPECT_TRUE(date_v2.year() == 9999);
                                         ^
   ```
   



##########
be/test/vec/runtime/vdatetime_value_test.cpp:
##########
@@ -570,4 +570,172 @@ TEST(VDateTimeValueTest, date_v2_to_string_test) {
     }
 }
 
+TEST(VDateTimeValueTest, date_v2_daynr_test) {
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1970/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719528));
+        EXPECT_TRUE(date_v2.year() == 1970);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1970, 1, 1) == 719528);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1970));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719528));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1969/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(719527));
+        EXPECT_TRUE(date_v2.year() == 1969);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1969, 12, 31) == 719527);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1969));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(719527));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1900/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693961));
+        EXPECT_TRUE(date_v2.year() == 1900);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1900, 1, 1) == 693961);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(1900));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693961));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 1899/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(693960));
+        EXPECT_TRUE(date_v2.year() == 1899);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(1899, 12, 31) == 693960);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(1899));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(693960));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2039/12/31
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745094));
+        EXPECT_TRUE(date_v2.year() == 2039);
+        EXPECT_TRUE(date_v2.month() == 12);
+        EXPECT_TRUE(date_v2.day() == 31);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2039, 12, 31) == 745094);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_calc_daynr(2039));
+        
EXPECT_TRUE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745094));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 2040/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(745095));
+        EXPECT_TRUE(date_v2.year() == 2040);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(2040, 01, 01) == 745095);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(2040));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(745095));
+    }
+
+    {
+        DateV2Value<DateV2ValueType> date_v2;
+        // 0000/01/01
+        EXPECT_TRUE(date_v2.get_date_from_daynr(1));
+        EXPECT_TRUE(date_v2.year() == 0);
+        EXPECT_TRUE(date_v2.month() == 1);
+        EXPECT_TRUE(date_v2.day() == 1);
+        EXPECT_TRUE(date_v2.hour() == 0);
+        EXPECT_TRUE(date_v2.minute() == 0);
+        EXPECT_TRUE(date_v2.second() == 0);
+        EXPECT_TRUE(date_v2.microsecond() == 0);
+        EXPECT_TRUE(doris::calc_daynr(0, 01, 01) == 1);
+        EXPECT_TRUE(date_day_offset_dict::get().get_dict_init());
+        EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_calc_daynr(0));
+        
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(1));

Review Comment:
   warning: static member accessed through instance 
[readability-static-accessed-through-instance]
   ```cpp
           
EXPECT_FALSE(date_day_offset_dict::get().can_speed_up_daynr_to_date(1));
                        ^
   ```
   



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