Method getRoot

test/optimizer/optimizer_test.cpp:25–35

        return planner::LogicalPlanUtil::encodeJoin(*TestRunner::getLogicalPlan(query, *conn));
    }
    std::unique_ptr<planner::LogicalPlan> getRoot(const std::string& query) {
        auto preparedStatement = conn->prepare(query);
        if (!preparedStatement->isSuccess()) {
            throw std::runtime_error("Failed to prepare optimizer test query:\n" + query +
                                     "\nError:\n" + preparedStatement->getErrorMessage());
        }
        auto cachedStatement =
            conn->getClientContext()->getCachedPreparedStatementManager().getCachedStatement(
                preparedStatement->getName());
        return std::move(cachedStatement->logicalPlan);
    }

    // Helper to check if a specific operator type exists in the plan
    static bool hasOperatorType(planner::LogicalOperator* op, planner::LogicalOperatorType type) {