# ElasticSearch 5.3 filterer char\_filter. pattern\_replace not working **URL:** \ **Category:** Elasticsearch\ **Created:** [August 1, 2017, 2:24am UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265 "2017-08-01T02:24:54Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Galim\_Kaudinov](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@Galim\_Kaudinov](https://discuss.elastic.co/u/Galim_Kaudinov)\ **Post date:** [August 1, 2017, 2:24am UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265/1 "2017-08-01T02:24:54Z")
favorite I have a requirement where I need to query docs by phone number. Users can enter characters such as parenthesis and dashes in the search query string and they should be [ignored.So](http://ignored.So), I have created a custom analyzer that uses a char\_filter which in its turn uses pattern\_replace token filter to remove everything but digits with a regex. But It does not seem like elastic search is filtering out non-digits. Here is a sample of what I am trying to do: **Index Creation** ``` put my_test_index { "settings" : { "index": { "analysis": { "char_filter": { "non_digit": { "pattern": "\\D", "type": "pattern_replace", "replacement": "" } }, "analyzer": { "no_digits_analyzer": { "type": "custom", "cahr_filter": [ "non_digit" ], "tokenizer": "keyword" } } } } }, "mappings" : { "doc_with_phone_prop" : { "properties": { "phone": { "type": "text", "analyzer": "no_digits_analyzer", "search_analyzer": "no_digits_analyzer" } } } } } ``` **Inserting one doc** ``` put my_test_index/doc_with_phone_prop/1 { "phone": "3035555555" } ``` **Querying without any parenthesis or dashes in the phone** ``` post my_test_index/doc_with_phone_prop/_search { "query": { "bool": { "must": [ { "query_string": { "query": "3035555555", "fields": ["phone"] } }] } } } ``` **This returns one document correctly:** ``` { "took": 1, "timed_out": false, "_shards": { "total": 5, "successful": 5, "failed": 0 }, "hits": { "total": 1, "max_score": 0.2876821, "hits": [ { "_index": "my_test_index", "_type": "doc_with_phone_prop", "_id": "1", "_score": 0.2876821, "_source": { "phone": "3035555555" } } ] } } ``` **Querying with parenthesis does not return anything, But I was under the assumption that my no\_digits\_analyzer will remove from the search terms everything but digits.** ``` post my_test_index/doc_with_phone_prop/_search { "query": { "bool": { "must": [ { "query_string": { "query": "\\(303\\)5555555", "fields": ["phone"] } }] } } } ``` What am I doing wrong here? I am using ElasticSearch 5.3. Thanks. ---
**Author:** ![medcl.net](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/medcl.net/32/4414_2.png) [@medcl.net](https://discuss.elastic.co/u/medcl.net)\ **Post date:** [August 1, 2017, 2:55am UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265/2 "2017-08-01T02:55:17Z")
> [@Galim\_Kaudinov](#): > > cahr\_filter Hey， there is a small typo： `cahr_filter`，should fixed with： `char_filter` ---
**Author:** ![Galim\_Kaudinov](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@Galim\_Kaudinov](https://discuss.elastic.co/u/Galim_Kaudinov)\ **Post date:** [August 1, 2017, 3:05am UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265/3 "2017-08-01T03:05:35Z")
Yep! fixed it. Thanks, this was pretty stupid. But now for whatever reason when I query \(303\)5555555 returns a correct row and 3035555555, but If I put dash inside it does not return results, like this \(303\)555-5555. Regex seems to be correct. ---
**Author:** ![medcl.net](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/medcl.net/32/4414_2.png) [@medcl.net](https://discuss.elastic.co/u/medcl.net)\ **Post date:** [August 1, 2017, 6:05am UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265/4 "2017-08-01T06:05:11Z")
if you already filtered the char during analysis chain, you can easily use the field directly, regex is not needed, just use simple query string query. ---
**Author:** ![Galim\_Kaudinov](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@Galim\_Kaudinov](https://discuss.elastic.co/u/Galim_Kaudinov)\ **Post date:** [August 1, 2017, 4:32pm UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265/5 "2017-08-01T16:32:57Z")
I was using query\_string in the **must** and that was **incorrect** , because it does not escape special characters. I needed to use multi\_match [https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-multi-match-query.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-multi-match-query.html) ``` post my_test_index/doc_with_phone_prop/_search { "query": { "bool": { "must": [ { "multi_match": { "query": "(303) 555- 5555", "fields": ["phone"] } }] } } } ``` ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [August 29, 2017, 4:33pm UTC](https://discuss.elastic.co/t/elasticsearch-5-3-filterer-char-filter-pattern-replace-not-working/95265/6 "2017-08-29T16:33:35Z")
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