andygrove commented on issue #3820:
URL:
https://github.com/apache/arrow-datafusion/issues/3820#issuecomment-1297759967
The issue is in this part of the plan:
```
Projection: group_alias_0 AS p_brand, group_alias_1 AS p_type,
group_alias_2 AS p_size, COUNT(alias1) AS COUNT(DISTINCT partsupp.ps_suppkey)
Aggregate: groupBy=[[group_alias_0, group_alias_1, group_alias_2]],
aggr=[[COUNT(alias1)]]
Aggregate: groupBy=[[part.p_brand AS group_alias_0, part.p_type AS
group_alias_1, part.p_size AS group_alias_2, partsupp.ps_suppkey AS alias1]],
aggr=[[]]
```
We have `part.p_brand AS group_alias_0` and later `group_alias_0 AS
p_brand`, dropping the qualifier.
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