Open praveentiru opened 3 years ago
It seems that this is lack of proper implementation for certain functions. After upgrading the dependency from "4.0" to "5.0" the signature of concat has changed from pub fn concat(e: Expr) -> Expr
to pub fn concat(args: &[Expr]) -> Expr
.
It would be helpful to new users to documents functions that are yet to be properly implemented. I will try to create a list but, need someone to validate this properly.
I prefer to use Dataframe API directly and I am trying to do the same. I am new to library so, I am unable to figure out how to use certain functions in logical_plan that are declared as unary operators but actually need multiple inputs.
Examples:
Common signature in all 3 cases is:
pub fn function_name(e: Expr) -> Expr
Question: How does proper input expression for this to work?