xudong963 opened a new issue, #16277:
URL: https://github.com/apache/datafusion/issues/16277
```
DataFusion CLI v48.0.0
> create table t1(a varchar, b char);
0 row(s) fetched.
Elapsed 0.009 seconds.
> show columns from t1;
+---------------+--------------+------------+-------------+-----------+-------------+
| table_catalog | table_schema | table_name | column_name | data_type |
is_nullable |
+---------------+--------------+------------+-------------+-----------+-------------+
| datafusion | public | t1 | a | Utf8View | YES
|
| datafusion | public | t1 | b | Utf8 | YES
|
+---------------+--------------+------------+-------------+-----------+-------------+
2 row(s) fetched.
Elapsed 0.012 seconds.
```
Currently, `map_varchar_to_utf8view` is enabled by default, I noticed `char`
will be mapped to Utf8 in nature, so if `map_varchar_to_utf8view` is true,
should we also map `char` to `Utf8View`
FYI: I found the issue while upgrading DF48 for mv repo:
https://github.com/datafusion-contrib/datafusion-materialized-views/pull/61/files#r2131717796
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