xudong963 opened a new issue, #14522:
URL: https://github.com/apache/datafusion/issues/14522
### Describe the bug
Nullable doesn't work when create memory table.
### To Reproduce
```
DataFusion CLI v44.0.0
> CREATE or replace TABLE table_with_pk (
sn INT PRIMARY KEY NOT NULL,
ts TIMESTAMP WITH TIME ZONE NOT NULL,
currency VARCHAR(3) NOT NULL,
amount FLOAT
) as VALUES
(0, '2022-01-01 06:00:00Z'::timestamp, 'EUR', 30.0),
(1, '2022-01-01 08:00:00Z'::timestamp, 'EUR', 50.0),
(2, '2022-01-01 11:30:00Z'::timestamp, 'TRY', 75.0),
(3, '2022-01-02 12:00:00Z'::timestamp, 'EUR', 200.0);
0 row(s) fetched.
Elapsed 0.032 seconds.
> show columns FROM table_with_pk;
+---------------+--------------+---------------+-------------+---------------------------------------+-------------+
| table_catalog | table_schema | table_name | column_name | data_type
| is_nullable |
+---------------+--------------+---------------+-------------+---------------------------------------+-------------+
| datafusion | public | table_with_pk | sn | Int32
| YES |
| datafusion | public | table_with_pk | ts |
Timestamp(Nanosecond, Some("+00:00")) | YES |
| datafusion | public | table_with_pk | currency | Utf8
| YES |
| datafusion | public | table_with_pk | amount | Float32
| YES |
+---------------+--------------+---------------+-------------+---------------------------------------+-------------+
4 row(s) fetched.
Elapsed 0.015 seconds.
```
### Expected behavior
```
+---------------+--------------+---------------+-------------+---------------------------------------+-------------+
| table_catalog | table_schema | table_name | column_name | data_type
| is_nullable |
+---------------+--------------+---------------+-------------+---------------------------------------+-------------+
| datafusion | public | table_with_pk | sn | Int32
| NO |
| datafusion | public | table_with_pk | ts |
Timestamp(Nanosecond, Some("+00:00")) | NO |
| datafusion | public | table_with_pk | currency | Utf8
| NO |
| datafusion | public | table_with_pk | amount | Float32
| YES |
+---------------+--------------+---------------+-------------+---------------------------------------+-------------+
```
### Additional context
_No response_
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For additional commands, e-mail: github-h...@datafusion.apache.org
