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Mryange a86134cb39 [fix](executor) Fixed an error with cast as time. #20144

before

mysql [(none)]>select cast("10:10:10" as time);
+-------------------------------+
| CAST('10:10:10' AS TIMEV2(0)) |
+-------------------------------+
| 00:00:00                      |
+-------------------------------+
after

mysql [(none)]>select cast("10:10:10" as time);
+-------------------------------+
| CAST('10:10:10' AS TIMEV2(0)) |
+-------------------------------+
| 10:10:10                      |
+-------------------------------+
In the past, we supported this syntax.

mysql [(none)]>select cast("2023:05:01 13:14:15" as time);
+------------------------------------------+
| CAST('2023:05:01 13:14:15' AS TIMEV2(0)) |
+------------------------------------------+
| 13:14:15                                 |
+------------------------------------------+
However, "10:10:10" is also a valid datetime.

mysql [(none)]>select cast("10:10:10" as datetime);
+-----------------------------------+
| CAST('10:10:10' AS DATETIMEV2(0)) |
+-----------------------------------+
| 2010-10-10 00:00:00               |
+-----------------------------------+
So here, the order of parsing has been adjusted.

2023-05-29 12:17:21 +08:00