小编Nik*_*iya的帖子

我正在使用Tableau和MarkLogic.我有以下XML结构

<CustomerInformation CustomerId="1">
        <CustomerBasicInformation>
            <CustomerTitle></CustomerTitle>
            <CustomerFirstName></CustomerFirstName>
            <CustomerMiddleName></CustomerMiddleName>
            <CustomerLastName></CustomerLastName>
        </CustomerBasicInformation>
        <CustomerEmplyomentDetails>
            <CustomerEmployer>
                <EmployerName IsCurrentEmployer=""></EmployerName>
                <CustomerDesignation></CustomerDesignation>
                <EmployerLocation></EmployerLocation>
                <CustomerTenure></CustomerTenure>
            </CustomerEmployer>
        <CustomerEmplyomentDetails>
        <PolcyDetails>
            <Policy PolicyId="">
                <PolicyName></PolicyName>
                <PolicyType></PolicyType>
                <PolicyCategory></PolicyCategory>
                <QuoteNumber></QuoteNumber>
                <PolicyClaimDetails>
                    <PolicyClaim ClaimId="">
                        <PolicyClaimedOn></PolicyClaimedOn>
                        <PolicyClaimType></PolicyClaimType>
                        <PolicyClaimantName></PolicyClaimantName>
                    </PolicyClaim>
                </PolicyClaimDetails>
                <PolicyComplaintDetails>
                    <PolicyComplaint ComplaintId="">
                        <PolicyComplaintStatus></PolicyComplaintStatus>
                        <PolicyComplaintOn></PolicyComplaintOn>
                    </PolicyComplaint>
                </PolicyComplaintDetails>
                <BillingDetails>
                    <Billing BillingId="">
                        <BillingAmount></BillingAmount>
                        <BillingMode></BillingMode>
                    </Billing>
                </BillingDetails>
            </Policy>
            <Policy PolicyId="">
            <PolicyName></PolicyName>
            <PolicyType></PolicyType>
            <PolicyCategory></PolicyCategory>
            <QuoteNumber></QuoteNumber>
            <PolicyClaimDetails>
                <PolicyClaim ClaimId="">
                    <PolicyClaimedOn></PolicyClaimedOn>
                    <PolicyClaimType></PolicyClaimType>
                    <PolicyClaimantName></PolicyClaimantName>
                </PolicyClaim>
            </PolicyClaimDetails>
            <PolicyComplaintDetails>
                <PolicyComplaint ComplaintId="">
                    <PolicyComplaintStatus></PolicyComplaintStatus>
                    <PolicyComplaintOn></PolicyComplaintOn>
                </PolicyComplaint>
            </PolicyComplaintDetails>
            <BillingDetails>
                <Billing BillingId="">
                    <BillingAmount></BillingAmount>
                    <BillingMode></BillingMode>
                </Billing>
            </BillingDetails>
        </Policy>
    </PolcyDetails>
</CustomerInformation>

我已经在上面的结构上创建了一个视图.最初我为所有元素创建了一个视图,但在Tableau上我得到了重复值以及笛卡尔连接结果.所以为了解决这个问题,我使用了片段根的方法.由于单个客户可以有多个PolicyDetails.我在Policy上创建了片段根目录.类似声明,投诉,计费,报价对于单个策略可以是多个,我已经在每个策略上创建了片段根. …

在我的项目之一,MarkLogic顾问建议我使用collection()的cts:search,而在另一个项目中,ML顾问建议在使用根元素cts:search.在这两个项目中,我们拥有相同数量的文档.哪一个在性能方面更好？

假设我们有一份文件(我正在拿一个小文件来解释这个场景).它有一个名为"demo"的集合:

<root>
<child1>ABC</child1>
<child2>DEF</child2>
<child3>GHI</child3>
<child4>JKL</child4>
</root>

哪种情况更好/更有效:

cts:search(/root, cts:and-query((....some cts:queries..)))

cts:search(collection("demo"), cts:and-query((....some cts:queries..)))

请帮我解释一个比其他更好的解释.