Thanks David.
But unfortunately, it does not work.
I tried with _analyze API, if the input is “this is test Title”,
the output is:
{"tokens":[{"token":"this is test
title","start_offset":0,"end_offset":30,"type":"word","position":1}]}
On Friday, February 27, 2015 at 5:43:10 PM UTC+8, David Pilato wrote:
>
> May be adding this to your filters?
> http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/analysis-trim-tokenfilter.html
>
>
> --
> *David Pilato* | *Technical Advocate* | *Elasticsearch.com
> <http://Elasticsearch.com>*
> @dadoonet <https://twitter.com/dadoonet> | @elasticsearchfr
> <https://twitter.com/elasticsearchfr> | @scrutmydocs
> <https://twitter.com/scrutmydocs>
>
>
>
> Le 27 févr. 2015 à 10:40, Xudong You <[email protected] <javascript:>> a
> écrit :
>
> I have document like this:
>
> {"Title":"This is my test title"}
>
> This question was asked before, but my reply to the original post was
> never accepted by the mailing list. So, sorry to re-ask same question
> again on a new post.
>
> I want to return the doc with exactly matched title, but allowing case
> insensitive and redundant white space between words. That is, all of these
> queries: "this is my test TITLE", "this is my test title" and "this is
> my test title" will match the doc.
>
> My initial idea is to define a custom analyzer with keyword tonenizer and
> lowercase filter:
> "settings" : {
> "analysis" : {
> "analyzer" : {
> "lowercase_keyword" : {
> "type" : "custom",
> "tokenizer" : "keyword",
> "filter" : "lowercase"
> }
> }
> }
> }
>
> and use lowercase_keyword analyzer for title filed:
> "properties" : {
> "title" : {
> "type" : "string",
> "analyzer" : "lowercase_keyword"
> }
> }
>
> It works well for both "this is my test TITLE" and "this is my test
> title". But does not work for redundant white spaces case like "this is
> my test title".
>
> How can I define my custom analyzer to achieve my goal?
>
> Thanks!
>
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