# Which character/special character break Elastic Search on index time as well as Search? **URL:** \ **Category:** Elasticsearch\ **Created:** [March 18, 2012, 5:53am UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042 "2012-03-18T05:53:34Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Sam\_4](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@Sam\_4](https://discuss.elastic.co/u/Sam_4)\ **Post date:** [March 18, 2012, 5:53am UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042/1 "2012-03-18T05:53:34Z")
Hi can anyone provide list of character which breaks Elastic Search on index and search . Thanks ---
**Author:** ![vineeth\_mohan](https://avatars.discourse-cdn.com/v4/letter/v/bc79bd/32.png) [@vineeth\_mohan](https://discuss.elastic.co/u/vineeth_mohan)\ **Post date:** [March 18, 2012, 6:24am UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042/2 "2012-03-18T06:24:28Z")
ES supports UTF encoding and hence there should not be any such character which breaks ES. Can you elaborate the context where you have run into such a character. Thanks Vineeth On Sun, Mar 18, 2012 at 11:23 AM, sam [mishra.sameek@gmail.com](mailto:mishra.sameek@gmail.com) wrote: > Hi > > can anyone provide list of character which breaks Elastic Search on index > and search . > > Thanks ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 18, 2012, 7:46am UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042/3 "2012-03-18T07:46:01Z")
You could break indexing if you use special chars (like comma) in index name, type name or ID. Otherwise, as Vineeth said, it should not break. David 😉 Twitter : @dadoonet / @elasticsearchfr Le 18 mars 2012 à 07:24, Vineeth Mohan [vineethmohan@algotree.com](mailto:vineethmohan@algotree.com) a écrit : > ES supports UTF encoding and hence there should not be any such character which breaks ES. > Can you elaborate the context where you have run into such a character. > > Thanks > Vineeth > > On Sun, Mar 18, 2012 at 11:23 AM, sam [mishra.sameek@gmail.com](mailto:mishra.sameek@gmail.com) wrote: > Hi > > can anyone provide list of character which breaks Elastic Search on index and search . > > Thanks ---
**Author:** ![Sam\_4](https://avatars.discourse-cdn.com/v4/letter/s/db5fbb/32.png) [@Sam\_4](https://discuss.elastic.co/u/Sam_4)\ **Post date:** [March 18, 2012, 5:05pm UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042/4 "2012-03-18T17:05:33Z")
Thanks for reply. if document may contains special character comma,colon etc in this case what happen? On Sunday, March 18, 2012 1:16:01 PM UTC+5:30, David Pilato wrote: > You could break indexing if you use special chars (like comma) in index > name, type name or ID. > > Otherwise, as Vineeth said, it should not break. > > David 😉 > Twitter : @dadoonet / @elasticsearchfr > > Le 18 mars 2012 à 07:24, Vineeth Mohan [vineethmohan@algotree.com](mailto:vineethmohan@algotree.com) a > écrit : > > ES supports UTF encoding and hence there should not be any such character > which breaks ES. > Can you elaborate the context where you have run into such a character. > > Thanks > Vineeth > > On Sun, Mar 18, 2012 at 11:23 AM, sam [mishra.sameek@gmail.com](mailto:mishra.sameek@gmail.com) wrote: > > > Hi > > > > can anyone provide list of character which breaks Elastic Search on index > > and search . > > > > Thanks ---
**Author:** ![vineeth\_mohan](https://avatars.discourse-cdn.com/v4/letter/v/bc79bd/32.png) [@vineeth\_mohan](https://discuss.elastic.co/u/vineeth_mohan)\ **Post date:** [March 18, 2012, 5:24pm UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042/5 "2012-03-18T17:24:03Z")
Which part of the document ? You need to preserve the JSON format for one thing. Then its just fields and values. Its fine if it comes in the value side and i havnt tried it on the field side. Can you elaborate you problem a little more. Like the scenario which motivated to ask this question Thanks Vineeth On Sun, Mar 18, 2012 at 10:35 PM, sam [mishra.sameek@gmail.com](mailto:mishra.sameek@gmail.com) wrote: > Thanks for reply. > > if document may contains special character comma,colon etc in this case > what happen? > > On Sunday, March 18, 2012 1:16:01 PM UTC+5:30, David Pilato wrote: > > > You could break indexing if you use special chars (like comma) in index > > name, type name or ID. > > > > Otherwise, as Vineeth said, it should not break. > > > > David 😉 > > Twitter : @dadoonet / @elasticsearchfr > > > > Le 18 mars 2012 à 07:24, Vineeth Mohan [vineethmohan@algotree.com](mailto:vineethmohan@algotree.com) a > > écrit : > > > > ES supports UTF encoding and hence there should not be any such character > > which breaks ES. > > Can you elaborate the context where you have run into such a character. > > > > Thanks > > Vineeth > > > > On Sun, Mar 18, 2012 at 11:23 AM, sam [mishra.sameek@gmail.com](mailto:mishra.sameek@gmail.com) wrote: > > > > > Hi > > > > > > can anyone provide list of character which breaks Elastic Search on > > > index and search . > > > > > > Thanks ---
**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, 3:35am UTC](https://discuss.elastic.co/t/which-character-special-character-break-elastic-search-on-index-time-as-well-as-search/7042/6 "2017-07-06T03:35:41Z")