andygrove opened a new issue, #17:
URL: https://github.com/apache/datafusion-spark/issues/17
### Describe the bug
I wanted to add `base64` support in Comet using the expression from
`datafusion-spark`, but it has no implementation, so I had to implement a
custom version in Comet. This doesn't seem ideal.
```rust
fn invoke_with_args(&self, _args: ScalarFunctionArgs) ->
Result<ColumnarValue> {
exec_err!("invoke should not be called on a simplified {} function",
self.name())
}
```
Impacted functions:
- [ ] base64
- [ ] unix
- [ ] trunc
- [ ] if
- [ ] date_diff
- [ ] time_trunc
- [ ] date_trunc
- [ ] add_months
- [ ] date_part
### Additional context
https://discord.com/channels/885562378132000778/1413656077014143008/1499408538429030421
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