如何过滤 Elasticsearch 中的多个字符

Question

Is there a way how to filter multiple characters during analyzing in ElastisSearch? We would like to setup it so if user searches ' botled ' then he get the documents that include ' bottled ' or ' botttled ', etc., ie no matter double, tripple letters.

I have looking for solution in token filters https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-tokenfilters.html , but it seems that none of them matches our requirements.

Answer 1

by default elasticsearch text field is tokenized based on whitespace, ie only words are indexed and are searchable.

would regex search work for you?

 GET /_search { "query": { "regexp": { "user": { "value": "b+o+t+t+l+e+d+" } } } }

b+ --> one or more occurrence of b