konjac opened a new issue, #1014:
URL: https://github.com/apache/datafusion-python/issues/1014
**Describe the bug**
EXPLAIN statement could not be printed with the following error.
```
Exception: Internal error: Unsupported logical plan: Explain must be root of
the plan.
This was likely caused by a bug in DataFusion's code and we would welcome
that you file an bug report in our issue tracker
```
**To Reproduce**
Steps to reproduce the behavior:
```
>>> from datafusion import SessionContext
>>> ctx = SessionContext()
>>> ctx.sql("explain select 1")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/home/kuhuan/.local/lib/python3.10/site-packages/datafusion/dataframe.py",
line 71, in __repr__
return self.df.__repr__()
Exception: Internal error: Unsupported logical plan: Explain must be root of
the plan.
This was likely caused by a bug in DataFusion's code and we would welcome
that you file an bug report in our issue tracker
```
**Expected behavior**
The output should just be like using explain function
```
>>> ctx.sql("select 1").explain()
DataFrame()
+---------------+--------------------------------------+
| plan_type | plan |
+---------------+--------------------------------------+
| logical_plan | Projection: Int64(1) |
| | EmptyRelation |
| physical_plan | ProjectionExec: expr=[1 as Int64(1)] |
| | PlaceholderRowExec |
| | |
+---------------+--------------------------------------+
```
**Additional context**
Add any other context about the problem here.
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