您可以为特殊字符创建令牌生成器，请参见以下示例
{
"settings" : {
"index" : {
"number_of_shards" : 1,
"number_of_replicas" : 1
},
"analysis" : {
"filter" : {
"custom_filter" : {
"type" : "word_delimiter",
"type_table": ["> => ALPHA", "< => ALPHA"]
}
},
"analyzer" : {
"custom_analyzer" : {
"type" : "custom",
"tokenizer" : "whitespace",
"filter" : ["lowercase", "custom_filter"]
}
}
}
},
"mappings" : {
"my_type" : {
"properties" : {
"msg" : {
"type" : "string",
"analyzer" : "custom_analyzer"
}
}
}
}
}
作为ALPHA字符，导致基础的word_delimiter将它们视为字母字符。
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