This pr makes three changes to the display of complex types：
1. NULL value in complex types refers to being displayed as `null`, not `NULL`
2. struct type is displayed as "column_name": column_value
3. Time types such as `datetime` and `date`, are displayed with double quotes in complex types. like
`{1, "2023-10-26 12:12:12"}`
This pr also do a code refactor:
1. nesting_level is set to a member variable of the `DataTypeSerDe`, rather than a parameter in methods.
What's more, this pr fix a bug that fileSize is not correct, introduced by this pr: #25854
remove case
```sql
select datediff('10000-10-31', '2010-10-15')
```
because Nereids throw exception when cast '10000-10-31' to date,
but legacy planner return null on it
fix shrink char column in map/struct
before we has char with specific length defined in map or struct field
we select map or struct , the char column in which one has been padding if we just insert less than specific length chars
but in mysql here just show inserted chars not padding specific length chars
---------
Co-authored-by: yiguolei <676222867@qq.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: sohardforaname <organic_chemistry@foxmail.com>
TODO:
1. support agg_state type
2. support implicit cast literal exception
3. use nereids execute dml for these regression cases:
- test_agg_state_nereids (for TODO 1)
- test_array_insert_overflow (for TODO 2)
- nereids_p0/json_p0/test_json_load_and_function (for TODO 2)
- nereids_p0/json_p0/test_json_unique_load_and_function (for TODO 2)
- nereids_p0/jsonb_p0/test_jsonb_load_and_function (for TODO 2)
- nereids_p0/jsonb_p0/test_jsonb_unique_load_and_function (for TODO 2)
- json_p0/test_json_load_and_function (for TODO 2)
- json_p0/test_json_unique_load_and_function (for TODO 2)
- jsonb_p0/test_jsonb_load_and_function (for TODO 2)
- jsonb_p0/test_jsonb_unique_load_and_function (for TODO 2)
- test_multi_partition_key (for TODO 2)
Revert "[feature](function) add json->operator convert to json_extract (#19899)"
because it conflict with lambda syntax
This reverts commit f54a068d82e88e8535f3ed55a4224886b752e46b.
UNIX_TIMESTAMP function data format parameter supports 'yyyy-MM-dd HH:mm:ss'
The implementation is the same as the date_format function
before:
```sql
mysql> select UNIX_TIMESTAMP('2023-09-18 00:00:00','yyyy-MM-dd HH:mm:ss');
+--------------------------------------------------------------+
| unix_timestamp('2023-09-18 00:00:00', 'yyyy-MM-dd HH:mm:ss') |
+--------------------------------------------------------------+
| NULL |
+--------------------------------------------------------------+
1 row in set (0.04 sec)
```
now:
```sql
mysql> select UNIX_TIMESTAMP('2023-09-18 00:00:00','yyyy-MM-dd HH:mm:ss');
+------------+
| 1694966400 |
+------------+
| 1694966400 |
+------------+
1 row in set (0.01 sec)
```
Now we can not support streamload with column which is map/array nested map/array
serde can do this now , so we can replace it
Notice. if item data in complex type data is empty we just return error, instead of makeup default value , because now we can not define right default for complex type
fix array index func with decimal
in old analyzer when sql with array_position or array_contains with decimal , may loss precision to which will make result wrong
