Class LambdaVariable

datafusion/expr/src/expr.rs:519–523

/// [`LogicalPlan::resolve_lambda_variables`]: crate::LogicalPlan::resolve_lambda_variables
#[derive(Clone, PartialEq, PartialOrd, Eq, Debug, Hash)]
pub struct LambdaVariable {
    pub name: String,
    pub field: Option<FieldRef>,
    pub spans: Spans,
}

impl LambdaVariable {
    /// Create a lambda variable from a name and an optional field.