Method select_item_to_sql

datafusion/sql/src/unparser/plan.rs:1817–1842

(&self, expr: &Expr)

    }

    fn select_item_to_sql(&self, expr: &Expr) -> Result<ast::SelectItem> {
        match expr {
            Expr::Alias(Alias { expr, name, .. }) => {
                let inner = self.expr_to_sql(expr)?;

                // Determine the alias name to use
                let col_name = if let Some(rewritten_name) =
                    self.dialect.col_alias_overrides(name)?
                {
                    rewritten_name.to_string()
                } else {
                    name.to_string()
                };

                Ok(ast::SelectItem::ExprWithAlias {
                    expr: inner,
                    alias: self.new_ident_quoted_if_needs(col_name),
                })
            }
            _ => {
                let inner = self.expr_to_sql(expr)?;

                Ok(ast::SelectItem::UnnamedExpr(inner))
            }
        }
    }

    fn sorts_to_sql(&self, sort_exprs: &[SortExpr]) -> Result<OrderByKind> {
        Ok(OrderByKind::Expressions(