jackwener commented on PR #4232:
URL:
https://github.com/apache/arrow-datafusion/pull/4232#issuecomment-1319908430
> BTW, below is the Spark SQL's plan
>
> ```
> == Optimized Logical Plan ==
> Project [[aa1,aa2] AS B#941145], Statistics(sizeInBytes=6.0 B)
> +- OneRowRelation, Statistics(sizeInBytes=1.0 B)
>
> == Physical Plan ==
> *(1) Project [[aa1,aa2] AS B#941145]
> +- *(1) Scan OneRowRelation[]
> ```
>
> Another example;
>
> `select ('aa1', 'aa2' as AA1) as B, ('xx1', 'xx2' as BB1) as X`
>
> I think we should keep the alias-projection, and alias-projection can
perfect represent such usage patten.
These alias bo
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