diff --git a/fe/fe-core/src/main/java/org/apache/doris/analysis/DateLiteral.java b/fe/fe-core/src/main/java/org/apache/doris/analysis/DateLiteral.java
index 2bdb3e43ac1360..9cd48b53ae4242 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/DateLiteral.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/DateLiteral.java
@@ -600,7 +600,11 @@ private String convertToString(PrimitiveType type) {
 
     @Override
     public long getLongValue() {
-        return (year * 10000 + month * 100 + day) * 1000000L + hour * 10000 + minute * 100 + second;
+        if (this.getType().isDate() || this.getType().isDateV2()) {
+            return year * 10000 + month * 100 + day;
+        } else {
+            return (year * 10000 + month * 100 + day) * 1000000L + hour * 10000 + minute * 100 + second;
+        }
     }
 
     @Override
diff --git a/fe/fe-core/src/test/java/org/apache/doris/analysis/InPredicateTest.java b/fe/fe-core/src/test/java/org/apache/doris/analysis/InPredicateTest.java
index 7c45237296ee23..1175db44a5e74e 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/analysis/InPredicateTest.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/analysis/InPredicateTest.java
@@ -175,7 +175,7 @@ public void testUnionWithDateV2() throws AnalysisException {
         InPredicate union = inPredicate1.union(inPredicate2);
         Assert.assertEquals(slotRef1, union.getChild(0));
         Assert.assertTrue(union.isLiteralChildren());
-        Assert.assertEquals(2, union.getListChildren().size());
+        Assert.assertEquals(3, union.getListChildren().size());
         Assert.assertTrue(union.getListChildren().contains(literalChild1));
         Assert.assertTrue(union.getListChildren().contains(literalChild2));
         Assert.assertTrue(union.getListChildren().contains(literalChild5));
diff --git a/fe/fe-core/src/test/java/org/apache/doris/rewrite/FEFunctionsTest.java b/fe/fe-core/src/test/java/org/apache/doris/rewrite/FEFunctionsTest.java
index eb9f18684d69ec..70ec805e64aff7 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/rewrite/FEFunctionsTest.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/rewrite/FEFunctionsTest.java
@@ -146,49 +146,33 @@ public void dateV2DiffTest() throws AnalysisException {
     public void dateAddTest() throws AnalysisException {
         DateLiteral actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATE),
                 new IntLiteral(1));
-        DateLiteral expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIME);
+        DateLiteral expectedResult = new DateLiteral("2018-08-09", Type.DATE);
         Assert.assertEquals(expectedResult, actualResult);
 
         actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIME);
+        expectedResult = new DateLiteral("2018-08-07", Type.DATE);
         Assert.assertEquals(expectedResult, actualResult);
     }
 
     @Test
     public void dateV2AddTest() throws AnalysisException {
         DateLiteral actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(1));
-        DateLiteral expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIMEV2);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(1));
-        expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIMEV2);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(1));
-        expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIME);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIMEV2);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIMEV2);
+        DateLiteral expectedResult = new DateLiteral("2018-08-09", Type.DATEV2);
         Assert.assertEquals(expectedResult, actualResult);
 
         actualResult = FEFunctions.dateAdd(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIME);
+        expectedResult = new DateLiteral("2018-08-07", Type.DATEV2);
         Assert.assertEquals(expectedResult, actualResult);
     }
 
     @Test
     public void addDateTest() throws AnalysisException {
         DateLiteral actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(1));
-        DateLiteral expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIME);
+        DateLiteral expectedResult = new DateLiteral("2018-08-09", Type.DATE);
         Assert.assertEquals(expectedResult, actualResult);
 
         actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIME);
+        expectedResult = new DateLiteral("2018-08-07", Type.DATE);
         Assert.assertEquals(expectedResult, actualResult);
 
     }
@@ -196,29 +180,12 @@ public void addDateTest() throws AnalysisException {
     @Test
     public void addDateV2Test() throws AnalysisException {
         DateLiteral actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(1));
-        DateLiteral expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIMEV2);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(1));
-        expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIMEV2);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(1));
-        expectedResult = new DateLiteral("2018-08-09 00:00:00", Type.DATETIME);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIMEV2);
-        Assert.assertEquals(expectedResult, actualResult);
-
-        actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATE), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIMEV2);
+        DateLiteral expectedResult = new DateLiteral("2018-08-09", Type.DATEV2);
         Assert.assertEquals(expectedResult, actualResult);
 
         actualResult = FEFunctions.addDate(new DateLiteral("2018-08-08", Type.DATEV2), new IntLiteral(-1));
-        expectedResult = new DateLiteral("2018-08-07 00:00:00", Type.DATETIME);
+        expectedResult = new DateLiteral("2018-08-07", Type.DATEV2);
         Assert.assertEquals(expectedResult, actualResult);
-
     }
 
     @Test