Method derive

datafusion/sql/src/unparser/plan.rs:336–357

(
        &self,
        plan: &LogicalPlan,
        relation: &mut RelationBuilder,
        alias: Option<ast::TableAlias>,
        lateral: bool,
    )

    }

    fn derive(
        &self,
        plan: &LogicalPlan,
        relation: &mut RelationBuilder,
        alias: Option<ast::TableAlias>,
        lateral: bool,
    ) -> Result<()> {
        let mut derived_builder = DerivedRelationBuilder::default();
        derived_builder.lateral(lateral).alias(alias).subquery({
            let inner_statement = self.plan_to_sql(plan)?;
            if let ast::Statement::Query(inner_query) = inner_statement {
                inner_query
            } else {
                return internal_err!(
                    "Subquery must be a Query, but found {inner_statement:?}"
                );
            }
        });
        relation.derived(derived_builder);

        Ok(())
    }

    fn derive_with_dialect_alias(
        &self,