jacktengg commented on code in PR #22281:
URL: https://github.com/apache/doris/pull/22281#discussion_r1276369100
##########
regression-test/suites/query_p0/sql_functions/cast_function/test_cast_string_to_array.groovy:
##########
@@ -41,5 +41,14 @@ suite("test_cast_string_to_array") {
qt_sql """ select cast ("[1,2,3,,,]" as array<int>) """
qt_sql """ select cast ("[a,b,c,,,]" as array<string>) """
qt_sql """ select cast ("[1.34,2.01,,,]" as array<decimal(10, 3)>) """
+
+ sql """ ADMIN SET FRONTEND CONFIG ("enable_date_conversion" = "false"); """
+ qt_sql """ select cast ("[2022-09-01,,]" as array<date>) """
+ qt_sql """ select cast ("[2022-09-01,,]" as array<string>) """
+ qt_sql """ select cast(cast ("[2022-09-01,,]" as array<string>) as
array<date>) """
+
+ sql """ ADMIN SET FRONTEND CONFIG ("enable_date_conversion" = "true"); """
qt_sql """ select cast ("[2022-09-01,,]" as array<date>) """
Review Comment:
We and doris cast empty string to null date:
```
mysql [(none)]>select cast('' as date);
+--------------------+
| cast('' as DATEV2) |
+--------------------+
| NULL |
+--------------------+
1 row in set (0.01 sec)
```
The casting result `[2022-09-01, , ]` should be not correct, I'll take a
look.
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