java - 如何让 MongoDB 将 "ł"视为同义词 "l"？

Question

我在 MongoDB 中遇到字符修饰问题。例如，我有单词:"śliwka"，当我使用完整搜索时，MongoDB 会自动将该单词转换为 "sliwka"，但如果我想搜索该单词"łukasz" MongoDB 没有将其转换为 "lukasz"。

如何让 MongoDB 将 ł 和 l 视为同一个字符？

Answer 1

在 MongoDB 中有一个创建同义词的库:

https://github.com/seelio/mongoose-synonyms

用法

After defining your schema, load the plugin with the dictionary to use for each field:

var mongooseSynonyms = require('mongoose-synonyms');
var MySchema = new mongoose.Schema({ ... });
MySchema.plugin(mongooseSynonyms, {
  dictionary: 'nicknames',
  fields: ['firstName', '$text.$search']
});

The keyOnly makes sure that each term will be replaced by the dictionary key only, thus avoiding all possible synonyms. For example, the for the following dictionary entry:

dictionary["łukasz"] = ["lukasz"];

或

dictionary["ł"] = ["l"];