# Special characters search in elastic search **URL:** \ **Category:** Elasticsearch\ **Created:** [December 9, 2010, 5:54am UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643 "2010-12-09T05:54:55Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Arulkumar](https://avatars.discourse-cdn.com/v4/letter/a/6de8d8/32.png) [@Arulkumar](https://discuss.elastic.co/u/Arulkumar)\ **Post date:** [December 9, 2010, 5:54am UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/1 "2010-12-09T05:54:55Z")
Hi , Can any one explain how to search for special characters in elastic search? I am using standard analyzer for indexing and searching. For example in elastic search a field have a value @. if i search like "\_text:@" means i am getting the results of 0 documents. ---
**Author:** ![ppearcy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ppearcy/32/980_2.png) [@ppearcy](https://discuss.elastic.co/u/ppearcy)\ **Post date:** [December 9, 2010, 7:35am UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/2 "2010-12-09T07:35:35Z")
Standard analyzer, uses standard tokenizer, which splits words at punctuation characters, removing punctuation. On Dec 8, 10:54 pm, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > Hi , > Can any one explain how to search for special characters > in Elasticsearch? > I am using standard analyzer for indexing and searching. > For example in Elasticsearch a field have a value @. if i > search like "\_text:@" means i am getting the results of 0 documents. ---
**Author:** ![Arulkumar](https://avatars.discourse-cdn.com/v4/letter/a/6de8d8/32.png) [@Arulkumar](https://discuss.elastic.co/u/Arulkumar)\ **Post date:** [December 9, 2010, 8:20am UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/3 "2010-12-09T08:20:51Z")
thank you .. So i can't search for special characters using standard analyzer right... If i want to search special character means which is the suitable analyzer for indexing and searching.....? On Dec 9, 12:35 pm, Paul [ppea...@gmail.com](mailto:ppea...@gmail.com) wrote: > Standard analyzer, uses standard tokenizer, which splits words at > punctuation characters, removing punctuation. > > On Dec 8, 10:54 pm, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > > > Hi , > > Can any one explain how to search for special characters > > in Elasticsearch? > > I am using standard analyzer for indexing and searching. > > For example in Elasticsearch a field have a value @. if i > > search like "\_text:@" means i am getting the results of 0 documents. ---
**Author:** ![ppearcy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ppearcy/32/980_2.png) [@ppearcy](https://discuss.elastic.co/u/ppearcy)\ **Post date:** [December 9, 2010, 4:50pm UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/4 "2010-12-09T16:50:04Z")
Correct. For very fine grained and explicit control you may want to check out the pattern analyzer. On Dec 9, 1:20 am, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > thank you .. So i can't search for special characters using standard > analyzer right... If i want to search special character means which is > the suitable analyzer for indexing and searching.....? > > On Dec 9, 12:35 pm, Paul [ppea...@gmail.com](mailto:ppea...@gmail.com) wrote: > > > Standard analyzer, uses standard tokenizer, which splits words at > > punctuation characters, removing punctuation. > > > On Dec 8, 10:54 pm, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > > > > Hi , > > > Can any one explain how to search for special characters > > > in Elasticsearch? > > > I am using standard analyzer for indexing and searching. > > > For example in Elasticsearch a field have a value @. if i > > > search like "\_text:@" means i am getting the results of 0 documents. ---
**Author:** ![Arulkumar](https://avatars.discourse-cdn.com/v4/letter/a/6de8d8/32.png) [@Arulkumar](https://discuss.elastic.co/u/Arulkumar)\ **Post date:** [December 10, 2010, 5:43am UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/5 "2010-12-10T05:43:16Z")
Can you explain the scenario of pattern analyzer. Is it possible to search like below example using pattern analyzer? I need to find the exact path in these.... For example path field contains the list of values like, ``` C:\Users\sample\data\test files\ C:\Users\sample\data\test files\sample data\sample.csv ``` On Dec 9, 9:50 pm, Paul [ppea...@gmail.com](mailto:ppea...@gmail.com) wrote: > Correct. For very fine grained and explicit control you may want to > check out the pattern analyzer. > > On Dec 9, 1:20 am, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > > > thank you .. So i can't search for special characters using standard > > analyzer right... If i want to search special character means which is > > the suitable analyzer for indexing and searching.....? > > > On Dec 9, 12:35 pm, Paul [ppea...@gmail.com](mailto:ppea...@gmail.com) wrote: > > > > Standard analyzer, uses standard tokenizer, which splits words at > > > punctuation characters, removing punctuation. > > > > On Dec 8, 10:54 pm, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > > > > > Hi , > > > > Can any one explain how to search for special characters > > > > in Elasticsearch? > > > > I am using standard analyzer for indexing and searching. > > > > For example in Elasticsearch a field have a value @. if i > > > > search like "\_text:@" means i am getting the results of 0 documents. ---
**Author:** ![ppearcy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ppearcy/32/980_2.png) [@ppearcy](https://discuss.elastic.co/u/ppearcy)\ **Post date:** [December 10, 2010, 7:53pm UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/6 "2010-12-10T19:53:58Z")
Read up on the analysis process: [http://www.elasticsearch.com/docs/elasticsearch/index\_modules/analysis/](http://www.elasticsearch.com/docs/elasticsearch/index_modules/analysis/) Here are the specific details on pattern analyzer: [http://www.elasticsearch.com/docs/elasticsearch/index\_modules/analysis/analyzer/pattern/](http://www.elasticsearch.com/docs/elasticsearch/index_modules/analysis/analyzer/pattern/) The docs do a much better job explaining than I can. Bottom line, though, the answer to your question depends on how you want to search the data. Regards On Dec 9, 10:43 pm, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > Can you explain the scenario of pattern analyzer. Is it possible to > search like below example using pattern analyzer? I need to find the > exact path in these.... > > For example path field contains the list of values like, > > ``` > C:\Users\sample\data\test files\ > C:\Users\sample\data\test files\sample data\sample.csv > > ``` > > On Dec 9, 9:50 pm, Paul [ppea...@gmail.com](mailto:ppea...@gmail.com) wrote: > > > Correct. For very fine grained and explicit control you may want to > > check out the pattern analyzer. > > > On Dec 9, 1:20 am, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > > > > thank you .. So i can't search for special characters using standard > > > analyzer right... If i want to search special character means which is > > > the suitable analyzer for indexing and searching.....? > > > > On Dec 9, 12:35 pm, Paul [ppea...@gmail.com](mailto:ppea...@gmail.com) wrote: > > > > > Standard analyzer, uses standard tokenizer, which splits words at > > > > punctuation characters, removing punctuation. > > > > > On Dec 8, 10:54 pm, Arulkumar [arulkuma...@gmail.com](mailto:arulkuma...@gmail.com) wrote: > > > > > > Hi , > > > > > Can any one explain how to search for special characters > > > > > in Elasticsearch? > > > > > I am using standard analyzer for indexing and searching. > > > > > For example in Elasticsearch a field have a value @. if i > > > > > search like "\_text:@" means i am getting the results of 0 documents. ---
**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, 4:15am UTC](https://discuss.elastic.co/t/special-characters-search-in-elastic-search/3643/7 "2017-07-06T04:15:27Z")