为什么 solr RemoveDuplicatesTokenFilterFactory 不起作用? [英] Why solr RemoveDuplicatesTokenFilterFactory dont work?

问题描述

我的schema.xml正在拆分产品名称，然后在拆分后使用RemoveDuplicate删除重复的单词.

My schema.xml is splitting product name and then uses RemoveDuplicate to remove duplicated words after split.

    <fieldType name="type_name" class="solr.TextField">
        <analyzer type="index">
            <tokenizer class="solr.PatternTokenizerFactory" pattern="\|| " />
            <filter class="solr.LowerCaseFilterFactory"/>
            <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>

在查询分析器中，我看到 RemoveDuplicatesTokenFilterFactory 对重复的单词完全没有做任何事情.为什么?

And in query analyzer I see that RemoveDuplicatesTokenFilterFactory did absolutely nothing to duplicated words. Why?

推荐答案

如果你阅读了 Wiki 你会看到它只删除了相同位置的重复项，这里不是这种情况.

If you read Wiki you will see that it only removes duplicates at the same position, which is not the case here.

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