# A really stupid newbie question - term versus query \\query string **URL:** \ **Category:** Elasticsearch\ **Created:** [October 28, 2012, 4:13pm UTC](https://discuss.elastic.co/t/a-really-stupid-newbie-question-term-versus-query-query-string/9486 "2012-10-28T16:13:39Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Rjoys](https://avatars.discourse-cdn.com/v4/letter/r/9de0a6/32.png) [@Rjoys](https://discuss.elastic.co/u/Rjoys)\ **Post date:** [October 28, 2012, 4:13pm UTC](https://discuss.elastic.co/t/a-really-stupid-newbie-question-term-versus-query-query-string/9486/1 "2012-10-28T16:13:39Z")
Hello, First post and I cannot seem to find the answer by searching the forum or internet. We are very new to elasticsearch, and I am integrating it into our app. I build an index based on what I thought was a simple example document with some single value fields and an array of "Fields", which is a structure containing a string "FieldName" amongst other things. When I use a simple rest tester and post the following query, I get the expected results of all documents having a field named "ContentBody" (please note that this query is going to evolve into more and logic): { "size": "20", "query": { "filtered": { "query": {"match\_all": {}}, "filter": { "and": [ {"query" : {"query\_string" : {"fields" : ["Fields.FieldName"], "query" : "ContentBody"}}} ] } } } } However, this query does not return any results: { "size": "20", "query": { "filtered": { "query": {"match\_all": {}}, "filter": { "and": [ {"term" : {"Fields.FieldName": "ContentBody"}}, ] } } } } This is all off default mapping. I am sure I am missing something brain dead simple about the way the term query works, and any insights are appreciated. Thank you -- ---
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [October 28, 2012, 4:40pm UTC](https://discuss.elastic.co/t/a-really-stupid-newbie-question-term-versus-query-query-string/9486/2 "2012-10-28T16:40:02Z")
Query string queries are analyzed, while term queries are not. Analyzing means tokenizing a field and applying various filters (lowercase, ascii folding, etc...). If you are using the default mapping, then Fields.FieldName was analyzed, which means it was lowercased. The query string query also analyzed your query string, so there was a match. A term query is not analyzed, so your query was not lowercased, and therefore did not match your indexed term (which was lowercased). You can see the different by using the analysis API: [http://localhost:9200/\_analyze?text=ContentBody&analyzer=standard](http://localhost:9200/_analyze?text=ContentBody&analyzer=standard) (analyzed) [http://localhost:9200/\_analyze?text=ContentBody&analyzer=keyword](http://localhost:9200/_analyze?text=ContentBody&analyzer=keyword) (not analyzed) Analysis in Elasticsearch is purely based on concepts from Lucene. You can learn more about analysis by reading Lucene documentation (although the Elasticsearch documentation is probably better in most cases). Cheers, Ivan On Sun, Oct 28, 2012 at 9:13 AM, Rjoys [rjoys@snapflow.com](mailto:rjoys@snapflow.com) wrote: > Hello, > > First post and I cannot seem to find the answer by searching the forum or > internet. We are very new to elasticsearch, and I am integrating it into > our app. > > I build an index based on what I thought was a simple example document > with some single value fields and an array of "Fields", which is a > structure containing a string "FieldName" amongst other things. > > When I use a simple rest tester and post the following query, I get the > expected results of all documents having a field named "ContentBody" > (please note that this query is going to evolve into more and logic): > { > "size": "20", > "query": { > "filtered": { > "query": {"match\_all": {}}, > "filter": { > "and": [ > {"query" : {"query\_string" : {"fields" : > ["Fields.FieldName"], "query" : "ContentBody"}}} > ] > } > } > } > } > > However, this query does not return any results: > > { > "size": "20", > "query": { > "filtered": { > "query": {"match\_all": {}}, > "filter": { > "and": [ > {"term" : {"Fields.FieldName": "ContentBody"}}, > ] > } > } > } > } > > This is all off default mapping. I am sure I am missing something brain > dead simple about the way the term query works, and any insights are > appreciated. > > Thank you > > -- -- ---
**Author:** ![Rjoys](https://avatars.discourse-cdn.com/v4/letter/r/9de0a6/32.png) [@Rjoys](https://discuss.elastic.co/u/Rjoys)\ **Post date:** [October 28, 2012, 5:29pm UTC](https://discuss.elastic.co/t/a-really-stupid-newbie-question-term-versus-query-query-string/9486/3 "2012-10-28T17:29:53Z")
Thank you Ivan. The query now works, and I appreciate the guidance as to where to dig in for more info! Cheers On Sunday, October 28, 2012 9:13:40 AM UTC-7, Rjoys wrote: > Hello, > > First post and I cannot seem to find the answer by searching the forum or > internet. We are very new to elasticsearch, and I am integrating it into > our app. > > I build an index based on what I thought was a simple example document > with some single value fields and an array of "Fields", which is a > structure containing a string "FieldName" amongst other things. > > When I use a simple rest tester and post the following query, I get the > expected results of all documents having a field named "ContentBody" > (please note that this query is going to evolve into more and logic): > { > "size": "20", > "query": { > "filtered": { > "query": {"match\_all": {}}, > "filter": { > "and": [ > {"query" : {"query\_string" : {"fields" : > ["Fields.FieldName"], "query" : "ContentBody"}}} > ] > } > } > } > } > > However, this query does not return any results: > > { > "size": "20", > "query": { > "filtered": { > "query": {"match\_all": {}}, > "filter": { > "and": [ > {"term" : {"Fields.FieldName": "ContentBody"}}, > ] > } > } > } > } > > This is all off default mapping. I am sure I am missing something brain > dead simple about the way the term query works, and any insights are > appreciated. > > Thank you -- ---
**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, 3:06am UTC](https://discuss.elastic.co/t/a-really-stupid-newbie-question-term-versus-query-query-string/9486/4 "2017-07-06T03:06:58Z")