alamb commented on issue #107:
URL:
https://github.com/apache/arrow-datafusion/issues/107#issuecomment-826839895
The good news is that this doesn't hang anymore... The bad news is that
datafusion doesn't seem to yet support sufficient functionality for handling
the Decimal type
```
> CREATE EXTERNAL TABLE something STORED AS PARQUET LOCATION
'/Users/alamb/Downloads/demo.parquet';
0 rows in set. Query took 0 seconds.
> select count(*) from foo;
Plan("Table or CTE with name \'foo\' not found")
> select count(*) from something;
+-----------------+
| COUNT(UInt8(1)) |
+-----------------+
| 15000000 |
+-----------------+
1 rows in set. Query took 1 seconds.
> select O_ORDERKEY from something limit 10;
ArrowError(InvalidArgumentError("Pretty printing not implemented for
Decimal(9, 0) type"))
> select O_ORDERKEY from something group by O_ORDERKEY;
ArrowError(ExternalError(ArrowError(ExternalError(Internal("Unsupported
GROUP BY type creating key Decimal(9, 0)")))))
>
```
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