andygrove commented on pull request #8032:
URL: https://github.com/apache/arrow/pull/8032#issuecomment-679327189
For built-in functions like `sqrt` I would expect DataFusion to provide
convenience functions to create an expression, like we do with `col` and the
aggregate functions. I assume we could also do that with the design proposed
here?
For example, I would like to be able to write:
```rust
df.select(vec![col("foo"), sqrt(col("bar"))])?
```
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