Jefffrey commented on issue #4837:
URL:
https://github.com/apache/arrow-datafusion/issues/4837#issuecomment-1374437689
Hmm, still can't reproduce, on latest master 83c10269:
```bash
jeffrey:~/Code/arrow-datafusion/datafusion-cli$ cat data1.csv
name
Alex
Bob
Alice
jeffrey:~/Code/arrow-datafusion/datafusion-cli$ cat data2.csv
name
Alex
Bob
John
jeffrey:~/Code/arrow-datafusion/datafusion-cli$ cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.10s
Running
`/media/jeffrey/1tb_860evo_ssd/.cargo_target_cache/debug/datafusion-cli`
DataFusion CLI v15.0.0
❯ CREATE EXTERNAL TABLE foo1 STORED AS CSV WITH HEADER ROW LOCATION
'data1.csv';
0 rows in set. Query took 0.013 seconds.
❯ CREATE EXTERNAL TABLE foo2 STORED AS CSV WITH HEADER ROW LOCATION
'data2.csv';
0 rows in set. Query took 0.002 seconds.
❯ (select * from foo1 except select * from foo2) union all (select * from
foo2 except select * from foo1);
+-------+
| name |
+-------+
| Alice |
| John |
+-------+
2 rows in set. Query took 0.012 seconds.
❯ \q
jeffrey:~/Code/arrow-datafusion/datafusion-cli$ git rev-parse --short HEAD
83c10269
```
Or should I try for different file formats too?
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