1. delete invalid signature of nvl function

2. fix some test cases that failed because of malformed function name

Author: Kikyou1997

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/Nvl.java

@@ -28,7 +28,6 @@
 import org.apache.doris.nereids.types.DateTimeType;
 import org.apache.doris.nereids.types.DateTimeV2Type;
 import org.apache.doris.nereids.types.DateType;
-import org.apache.doris.nereids.types.DateV2Type;
 import org.apache.doris.nereids.types.DecimalV2Type;
 import org.apache.doris.nereids.types.DoubleType;
 import org.apache.doris.nereids.types.FloatType;
@@ -65,10 +64,6 @@ public class Nvl extends ScalarFunction
             FunctionSignature.ret(DateTimeType.INSTANCE).args(DateTimeType.INSTANCE, DateType.INSTANCE),
             FunctionSignature.ret(DateTimeV2Type.SYSTEM_DEFAULT)
                     .args(DateTimeV2Type.SYSTEM_DEFAULT, DateTimeV2Type.SYSTEM_DEFAULT),
-            FunctionSignature.ret(DateTimeV2Type.SYSTEM_DEFAULT)
-                    .args(DateV2Type.INSTANCE, DateTimeV2Type.SYSTEM_DEFAULT),
-            FunctionSignature.ret(DateTimeV2Type.SYSTEM_DEFAULT)
-                    .args(DateTimeV2Type.SYSTEM_DEFAULT, DateV2Type.INSTANCE),
             FunctionSignature.ret(DecimalV2Type.SYSTEM_DEFAULT)
                     .args(DecimalV2Type.SYSTEM_DEFAULT, DecimalV2Type.SYSTEM_DEFAULT),
             FunctionSignature.ret(BitmapType.INSTANCE).args(BitmapType.INSTANCE, BitmapType.INSTANCE),

regression-test/data/nereids_function_p0/scalar_function/A-F.out

@@ -376,20 +376,18 @@
 
 -- !sql --
 \N
--35245.0
--5325.0
-64.0
-88.0
-524.0
-535.0
-4236.0
-5437.0
-7346.0
-7347.0
-7569.0
-23524.0
-77646.0
-534635.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+2.0
+2.0
 
 -- !sql --
 4

regression-test/data/nereids_function_p0/scalar_function/G-K.out

@@ -644,6 +644,66 @@ C
 2012-03-11T11:10:11
 2012-03-12T12:11:12
 
+-- !sql --
+\N
+2012-03-01T02:00:01
+2012-03-02T04:01:02
+2012-03-03T06:02:03
+2012-03-04T08:03:04
+2012-03-05T10:04:05
+2012-03-06T12:05:06
+2012-03-07T14:06:07
+2012-03-08T16:07:08
+2012-03-09T18:08:09
+2012-03-10T20:09:10
+2012-03-11T22:10:11
+2012-03-13T00:11:12
+
+-- !sql --
+\N
+2012-03-01T02:00:01
+2012-03-02T04:01:02
+2012-03-03T06:02:03
+2012-03-04T08:03:04
+2012-03-05T10:04:05
+2012-03-06T12:05:06
+2012-03-07T14:06:07
+2012-03-08T16:07:08
+2012-03-09T18:08:09
+2012-03-10T20:09:10
+2012-03-11T22:10:11
+2012-03-13T00:11:12
+
+-- !sql --
+\N
+2012-03-01T01:00
+2012-03-02T02:00
+2012-03-03T03:00
+2012-03-04T04:00
+2012-03-05T05:00
+2012-03-06T06:00
+2012-03-07T07:00
+2012-03-08T08:00
+2012-03-09T09:00
+2012-03-10T10:00
+2012-03-11T11:00
+2012-03-12T12:00
+
+-- !sql --
+\N
+2012-03-01T01:00
+2012-03-02T02:00
+2012-03-03T03:00
+2012-03-04T04:00
+2012-03-05T05:00
+2012-03-06T06:00
+2012-03-07T07:00
+2012-03-08T08:00
+2012-03-09T09:00
+2012-03-10T10:00
+2012-03-11T11:00
+2012-03-12T12:00
+
 -- !sql --
 \N
 0
@@ -779,6 +839,66 @@ C
 0
 0
 
+-- !sql --
+\N
+2012-03-01T00:00:01
+2012-03-02T00:01:02
+2012-03-03T00:02:03
+2012-03-04T00:03:04
+2012-03-05T00:04:05
+2012-03-06T00:05:06
+2012-03-07T00:06:07
+2012-03-08T00:07:08
+2012-03-09T00:08:09
+2012-03-10T00:09:10
+2012-03-11T00:10:11
+2012-03-12T00:11:12
+
+-- !sql --
+\N
+2012-03-01T00:00:01
+2012-03-02T00:01:02
+2012-03-03T00:02:03
+2012-03-04T00:03:04
+2012-03-05T00:04:05
+2012-03-06T00:05:06
+2012-03-07T00:06:07
+2012-03-08T00:07:08
+2012-03-09T00:08:09
+2012-03-10T00:09:10
+2012-03-11T00:10:11
+2012-03-12T00:11:12
+
+-- !sql --
+\N
+2012-02-29T23:00
+2012-03-01T22:00
+2012-03-02T21:00
+2012-03-03T20:00
+2012-03-04T19:00
+2012-03-05T18:00
+2012-03-06T17:00
+2012-03-07T16:00
+2012-03-08T15:00
+2012-03-09T14:00
+2012-03-10T13:00
+2012-03-11T12:00
+
+-- !sql --
+\N
+2012-02-29T23:00
+2012-03-01T22:00
+2012-03-02T21:00
+2012-03-03T20:00
+2012-03-04T19:00
+2012-03-05T18:00
+2012-03-06T17:00
+2012-03-07T16:00
+2012-03-08T15:00
+2012-03-09T14:00
+2012-03-10T13:00
+2012-03-11T12:00
+
 -- !sql --
 Null
 Varchar11