Method any_column_refs

datafusion/expr/src/expr.rs:2116–2119

Returns true if there are any column references in this Expr

(&self)

    /// Returns true if there are any column references in this Expr
    pub fn any_column_refs(&self) -> bool {
        self.exists(|expr| Ok(matches!(expr, Expr::Column(_))))
            .expect("exists closure is infallible")
    }

    /// Return true if the expression contains out reference(correlated) expressions.
    pub fn contains_outer(&self) -> bool {