Function datafusion_expr::expr_fn::wildcard
source · pub fn wildcard() -> ExprExpand description
Create an ‘*’ Expr::Wildcard expression that matches all columns
§Example
let p = wildcard();
assert_eq!(p.to_string(), "*")pub fn wildcard() -> ExprCreate an ‘*’ Expr::Wildcard expression that matches all columns
let p = wildcard();
assert_eq!(p.to_string(), "*")