Function unwrapFlattens

src/processor/map/map_aggregate.cpp:119–124

}

static const LogicalOperator* unwrapFlattens(const LogicalOperator* op) {
    while (op->getOperatorType() == LogicalOperatorType::FLATTEN) {
        op = op->getChild(0).get();
    }
    return op;
}

static bool isScalarFunction(const std::shared_ptr<Expression>& expression,
    const std::string& name) {