lowka opened a new issue, #10743:
URL: https://github.com/apache/datafusion/issues/10743
### Describe the bug
Since Datafusion has no Utf8(n) type precision/length parameter of
varchar/char types is ignored and this leads to unexpected results in CAST
expressions.
### To Reproduce
The following sqllogic test demonstrates the problem (DataFusion returns
12345 instead of 12):
```text
query T
SELECT '12345'::VARCHAR(2)
----
12
```
### Expected behavior
I would expect the following return either:
- '12' because casts to Varchar(n) should perform truncation.
- an error since DataFusion has no Utf8(n) type and than silently ignoring
length parameter.
### Additional context
DDL statements also allow varchar/char(n) types but n parameter is also
silently ignored.
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