rdettai opened a new issue #612:
URL: https://github.com/apache/arrow-datafusion/issues/612
**Describe the bug**
When the using an empty table (no column), a query like `select * from
empty_table` fails.
**To Reproduce**
```Rust
let mut ctx = ExecutionContext::new();
let empty_table = Arc::new(EmptyTable::new(Arc::new(Schema::empty())));
ctx.register_table("test_tbl", empty_table).unwrap();
let sql = "SELECT * FROM test_tbl";
let result = plan_and_collect(&mut ctx, sql)
.await
.expect("Query empty table");
```
**Expected behavior**
Returns an empty table
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