# Completion suggester troubles **URL:** \ **Category:** Elasticsearch\ **Created:** [December 5, 2014, 2:42pm UTC](https://discuss.elastic.co/t/completion-suggester-troubles/21105 "2014-12-05T14:42:46Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Michael\_Irwin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michael_irwin/32/985_2.png) [@Michael\_Irwin](https://discuss.elastic.co/u/Michael_Irwin)\ **Post date:** [December 5, 2014, 2:42pm UTC](https://discuss.elastic.co/t/completion-suggester-troubles/21105/1 "2014-12-05T14:42:46Z")
I'm using the Completion suggester with v1.4.1, and I'm noticing an issue regarding case sensitivity. For example, I have this mapping: { "mappings": { "artist": { "properties": { "suggest": { "type": "completion", "payloads": true }, "name": { "type": "string" } } } } } I add a document with artist.name = "foo bar" and add another document but with the name in ALL CAPS (e.g. "FOO BAR"). I do a completion query for "foo", I get back two separate completions, one for each different case. How can I ensure only one completion is returned regardless of case? ## Thanks! Mike -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/20141205144245.GA11737%40bonzo](https://groups.google.com/d/msgid/elasticsearch/20141205144245.GA11737%40bonzo). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![micpalmia](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/micpalmia/32/541_2.png) [@micpalmia](https://discuss.elastic.co/u/micpalmia)\ **Post date:** [December 5, 2014, 5:01pm UTC](https://discuss.elastic.co/t/completion-suggester-troubles/21105/2 "2014-12-05T17:01:00Z")
The only way to have results deduplicated seems to be using the same output for the same entry. From the manual [http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html#indexing](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html#indexing) : output - The string to return, if a suggestion matches. This is very useful to normalize outputs (i.e. have them always in the format artist - songname). This is optional. Note: _The result is de-duplicated if several documents have the same output_, i.e. only one is returned as part of the suggest result. Michele On Friday, 5 December 2014 15:42:54 UTC+1, Michael Irwin wrote: > I'm using the Completion suggester with v1.4.1, and I'm noticing an > issue regarding case sensitivity. For example, I have this mapping: > > { > "mappings": { > "artist": { > "properties": { > "suggest": { > "type": "completion", > "payloads": true > }, > "name": { > "type": "string" > } > } > } > } > } > > I add a document with artist.name = "foo bar" and add another document > but with the name in ALL CAPS (e.g. "FOO BAR"). I do a completion query for > "foo", I get back two separate completions, one for each different case. > How can I ensure only one completion is returned regardless of case? > > ## Thanks! > > Mike -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/e9d5292f-d948-4b9b-a0dd-a92aa804150e%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/e9d5292f-d948-4b9b-a0dd-a92aa804150e%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Michael\_Irwin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michael_irwin/32/985_2.png) [@Michael\_Irwin](https://discuss.elastic.co/u/Michael_Irwin)\ **Post date:** [December 5, 2014, 10:38pm UTC](https://discuss.elastic.co/t/completion-suggester-troubles/21105/3 "2014-12-05T22:38:52Z")
Thanks. I've tried ensuring the outputs are identicial (making them all lowercase), but I'm still seeing duplicates. Any other ideas? On Friday, December 5, 2014 12:01:00 PM UTC-5, Michele Palmia wrote: > The only way to have results deduplicated seems to be using the same output > for the same entry. > > From the manual > [http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html#indexing](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-suggesters-completion.html#indexing) > : > output - The string to return, if a suggestion matches. This is very > useful to normalize outputs (i.e. have them always in the format artist - > songname). This is optional. Note: _The result is de-duplicated if > several documents have the same output_, i.e. only one is returned as > part of the suggest result. > > Michele > > On Friday, 5 December 2014 15:42:54 UTC+1, Michael Irwin wrote: > > > I'm using the Completion suggester with v1.4.1, and I'm noticing an > > issue regarding case sensitivity. For example, I have this mapping: > > > > { > > "mappings": { > > "artist": { > > "properties": { > > "suggest": { > > "type": "completion", > > "payloads": true > > }, > > "name": { > > "type": "string" > > } > > } > > } > > } > > } > > > > I add a document with artist.name = "foo bar" and add another document > > but with the name in ALL CAPS (e.g. "FOO BAR"). I do a completion query for > > "foo", I get back two separate completions, one for each different case. > > How can I ensure only one completion is returned regardless of case? > > > > ## Thanks! > > > > Mike -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/424aae64-eb03-4913-ba0f-f82e6fdcb795%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/424aae64-eb03-4913-ba0f-f82e6fdcb795%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:45am UTC](https://discuss.elastic.co/t/completion-suggester-troubles/21105/4 "2017-07-06T00:45:24Z")