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我正在使用转换结果并在进行搜索时应用元数据片段来提取文档的属性。我没有得到属性，而且如果我删除<preferred-matches>，文档说它需要返回 prop-lastmodifed。但我没有得到任何东西。以下是我正在做的

xquery version "1.0-ml";
declare namespace html = "http://www.w3.org/1999/xhtml";
declare namespace prop = "http://marklogic.com/xdmp/property";
declare namespace meta = "http://ir.abbivenet.com/content-repo/metadata";
import module namespace search = "http://marklogic.com/appservices/search" at "/MarkLogic/appservices/search/search.xqy";

let $q := "(TNF)"

let $options := 
  <options xmlns="http://marklogic.com/appservices/search">
    <term>
      <term-option>case-insensitive</term-option>
      <term-option>punctuation-insensitive</term-option>
      <term-option>whitespace-insensitive</term-option>
      <term-option>wildcarded</term-option>
    </term>
    <transform-results apply="metadata-snippet">
       <preferred-matches>
        <element ns="http://ir.abbivenet.com/content-repo/metadata" name="id"/>
      </preferred-matches>
    </transform-results>
    <!--
    <return-facets>false</return-facets>
    <return-values>false</return-values>
    <return-constraints>false</return-constraints>
    <return-frequencies>false</return-frequencies>
    <return-qtext>false</return-qtext>
    <search-option>unfaceted</search-option>
    <search-option>score-simple</search-option>
    -->
  </options>

let $start := 1
let $page-length :=1000000

let $query-original := cts:query(search:parse($q, $options))


let $result := search:resolve(document { $query-original }/*,
                              $options,
                              $start,
                              $page-length)

return $result

以下是我的结果片段

<search:response snippet-format="metadata-snippet" total="546" start="1" page-length="1000000" xmlns:search="http://marklogic.com/appservices/search">
  <search:result index="1" 
                 uri="/documents/BioEln/79ca10522ef2bd3da946623c8dd1f5c6c786d983.xml/extractedText/79ca10522ef2bd3da946623c8dd1f5c6c786d983.xhtml" 
                 path="fn:doc("/documents/BioEln/79ca10522ef2bd3da946623c8dd1f5c6c786d983.xml/extractedText/79ca10522ef2bd3da946623c8dd1f5c6c786d983.xhtml")" 
                 score="246272" confidence="0.7858079" fitness="1">
    <search:snippet>
      <search:match 
         path="fn:doc("/documents/BioEln/79ca10522ef2bd3da946623c8dd1f5c6c786d983.xml/extractedText/79ca10522ef2bd3da946623c8dd1f5c6c786d983.xhtml")">
      </search:match>
    </search:snippet>
  </search:result>
  <search:result index="2" 
                 uri="/documents/BioEln/568819dbbf44a75598739e8272d0de5956dadff4.xml/extractedText/568819dbbf44a75598739e8272d0de5956dadff4.xhtml"
                 path="fn:doc("/documents/BioEln/568819dbbf44a75598739e8272d0de5956dadff4.xml/extractedText/568819dbbf44a75598739e8272d0de5956dadff4.xhtml")" 
                 score="246272" confidence="0.7858079" fitness="1">
  <search:snippet>
    <search:match path="fn:doc("/documents/BioEln/568819dbbf44a75598739e8272d0de5956dadff4.xml/extractedText/568819dbbf44a75598739e8272d0de5956dadff4.xhtml")">
    </search:match>
  </search:snippet>
</search:result>
<search:result index="3" uri="
4

1 回答 1

3

引用搜索开发指南：

apply="metadata-snippet" 选项从属性文档中返回指定的首选元素。如果未指定任何元素，则 metadata-snippet 选项为其片段返回 prop:last-modified 元素，如果 prop:last-modified 元素不存在，则返回一个空片段。

从 MarkLogic 6 或 7 开始，不再提供开箱即用的 last-modified 属性。这样可以节省您通常不需要的属性片段。您可以通过管理 UI 启用它。启用maintain last modified内容数据库的设置。我猜你还没有在你的数据库中这样做，这就是你得到空片段的原因。

！

于 2016-03-17T19:00:30.483 回答