Method schema_name

datafusion/expr/src/expr.rs:1582–1584

The name of the column (field) that this `Expr` will produce. For example, for a projection (e.g. `SELECT `) the resulting arrow [`Schema`] will have a field with this name. Note that the resulting string is subtlety different from the `Display` representation for certain `Expr`. Some differences: 1. [`Expr::Alias`], which shows only the alias itself 2. [`Expr::Cast`] / [`Expr::TryCast`],

(&self)

    ///
    /// [`Schema`]: arrow::datatypes::Schema
    pub fn schema_name(&self) -> impl Display + '_ {
        SchemaDisplay(self)
    }

    /// Human readable display formatting for this expression.
    ///