Method humanize

src/transform/src/analysis.rs:985–1000

Humanize the column to a [`String`], returns an empty [`String`] for unknown columns (or columns named `UNKNOWN_COLUMN_NAME`).

(&self, humanizer: &dyn ExprHumanizer)

        /// Humanize the column to a [`String`], returns an empty [`String`] for
        /// unknown columns (or columns named `UNKNOWN_COLUMN_NAME`).
        pub fn humanize(&self, humanizer: &dyn ExprHumanizer) -> String {
            match self {
                Self::Global(id, c) => humanizer.humanize_column(*id, *c).unwrap_or_default(),
                Self::Aggregate(func, expr) => {
                    let func = func.name();
                    let expr = expr.humanize(humanizer);
                    if expr.is_empty() {
                        String::from(func)
                    } else {
                        format!("{func}_{expr}")
                    }
                }
                Self::Annotated(name) => name.to_string(),
                Self::Unknown => String::new(),
            }
        }

        /// Clone this column name if it is known, otherwise try to use the provided
        /// name if it is available.