我有下面的约束..有约束
<options xmlns="http://marklogic.com/appservices/search">
<additional-query>
<cts:and-query xmlns:cts="http://marklogic.com/cts">
<cts:collection-query>
<cts:uri>OncoWatch</cts:uri>
</cts:collection-query>
</cts:and-query>
</additional-query>
<constraint name="search-text">
<word>
<field name="wos_topic"/>
</word>
</constraint>
<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>
</options>
当我做搜索字符串'(search-text:(patient* OR adult*))'
我得到的结果完全不同于我这样做'(search-text:patient*) OR (search-text:adult*)'
..是不是都相同?
如果在搜索字符串上应用search:parse
,则可以轻松查看差异:
xquery version "1.0-ml";
import module namespace search = "http://marklogic.com/appservices/search"
at "/MarkLogic/appservices/search/search.xqy";
let $options := <options xmlns="http://marklogic.com/appservices/search">
<additional-query>
<cts:and-query xmlns:cts="http://marklogic.com/cts">
<cts:collection-query>
<cts:uri>OncoWatch</cts:uri>
</cts:collection-query>
</cts:and-query>
</additional-query>
<constraint name="search-text">
<word>
<field name="wos_topic"/>
</word>
</constraint>
<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>
</options>
return (
search:parse("(search-text:(patient* OR adult*))", $options),
search:parse("(search-text:patient*) OR (search-text:adult*)", $options)
)
搜索解析器支持具有AND,OR,NEAR等相当复杂的搜索字符串,但缺少将多个值提供到单个约束中的支持。后者是正确的写作方式。第一个简单地让解析器与它的外观混淆,结果OR丢失,有效地导致它搜索短语search-text:"patient* adult*"
,这与需要两个术语相同。
HTH!