Function rewriteFunc

src/function/pattern/rowid_function.cpp:15–31

namespace function {

static std::shared_ptr<binder::Expression> rewriteFunc(const RewriteFunctionBindInput& input) {
    DASSERT(input.arguments.size() == 1);
    std::shared_ptr<Expression> idExpr;
    auto param = input.arguments[0].get();
    if (ExpressionUtil::isNodePattern(*param)) {
        auto node = param->constPtrCast<NodeExpression>();
        idExpr = node->getInternalID()->copy();
    } else if (ExpressionUtil::isRelPattern(*param)) {
        auto rel = param->constPtrCast<RelExpression>();
        idExpr = rel->getPropertyExpression(InternalKeyword::ID)->copy();
    } else {
        auto extractKey = input.expressionBinder->createLiteralExpression(InternalKeyword::ID);
        idExpr = input.expressionBinder->bindScalarFunctionExpression(
            {input.arguments[0], extractKey}, StructExtractFunctions::name);
    }
    return input.expressionBinder->bindScalarFunctionExpression({idExpr}, OffsetFunction::name);
}

function_set RowIDFunction::getFunctionSet() {
    function_set functionSet;