Method getSource

test/planner/cardinality_test.cpp:22–28

        return TestRunner::getLogicalPlan(query, *conn);
    }
    std::pair<planner::LogicalOperator*, planner::LogicalOperator*> getSource(
        planner::LogicalOperator* op, planner::LogicalOperator* parent = nullptr) {
        if (op->getNumChildren() == 0) {
            return {parent, op};
        }
        return getSource(op->getChild(0).get(), op);
    }
    planner::LogicalOperator* getOpWithType(planner::LogicalOperator* op,
        planner::LogicalOperatorType type) {
        if (op->getOperatorType() == type) {