waitingkuo opened a new issue, #3059:
URL: https://github.com/apache/arrow-datafusion/issues/3059
**Describe the bug**
A clear and concise description of what the bug is.
it works at v10.0.0, but doesn't work at master branch
**To Reproduce**
Steps to reproduce the behavior:
```bash
echo "a\n1" > b.csv
➜ datafusion-cli git:(master) ✗ cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.26s
Running `target/debug/datafusion-cli`
DataFusion CLI v10.0.0
❯ create external table b (a INTEGER) stored as csv with header row location
'b.csv';
NotImplemented("The SQL data type Integer(None) is not implemented")
```
while this works
```bash
❯ create external table b (a INT) stored as csv with header row location
'b.csv';
0 rows in set. Query took 0.016 seconds.
```
**Expected behavior**
A clear and concise description of what you expected to happen.
**Additional context**
Add any other context about the problem here.
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