# Is there a way to combine query\_string with mlt\_field?

**URL:** <https://discuss.elastic.co/t/is-there-a-way-to-combine-query-string-with-mlt-field/14993>\
**Category:** Elasticsearch\
**Created:** [December 23, 2013, 1:11am UTC](https://discuss.elastic.co/t/is-there-a-way-to-combine-query-string-with-mlt-field/14993 "2013-12-23T01:11:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![project2501](https://avatars.discourse-cdn.com/v4/letter/p/41988e/32.png) [@project2501](https://discuss.elastic.co/u/project2501)\
**Post date:** [December 23, 2013, 1:11am UTC](https://discuss.elastic.co/t/is-there-a-way-to-combine-query-string-with-mlt-field/14993/1 "2013-12-23T01:11:20Z")

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Hi,  
I can get facet counts from a MLT field query. Like below.

{"query":{"_mlt\_field_":{"text":{"like\_text":"ministers of  
defense","min\_term\_freq":1,"max\_query\_terms":12}}},"fields":["id"],"facets":{"entities.people":{"terms":{"field":"entities.people"}}}}

But I'm having trouble constructing a query for those documents. I still  
need to use the mlt\_field query as its the basis for my facets.  
But if I try and add query\_string like this:

{"query":{"_mlt\_field_":{"text":{"like\_text":"ministers of  
defense","min\_term\_freq":1,"max\_query\_terms":12}},"_query\_string_":{"fields":["text"],"query":"(entities.people:"government"  
OR entities.people:"government") AND  
text:"government""}},"fields":["id","locations","ratings"]}

I get a parse error.

What's the trick to add a query or filter to mlt\_field? The documentation  
doesn't clarify this.

thank you!!!

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**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:** [December 23, 2013, 1:25am UTC](https://discuss.elastic.co/t/is-there-a-way-to-combine-query-string-with-mlt-field/14993/2 "2013-12-23T01:25:12Z")

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I guess you could use a BoolQuery or a FilteredQuery.  
Does it help?

--  
David 😉  
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

Le 23 déc. 2013 à 02:11, project2501 [darreng5150@gmail.com](mailto:darreng5150@gmail.com) a écrit :

Hi,  
I can get facet counts from a MLT field query. Like below.

{"query":{"mlt\_field":{"text":{"like\_text":"ministers of defense","min\_term\_freq":1,"max\_query\_terms":12}}},"fields":["id"],"facets":{"entities.people":{"terms":{"field":"entities.people"}}}}

But I'm having trouble constructing a query for those documents. I still need to use the mlt\_field query as its the basis for my facets.  
But if I try and add query\_string like this:

{"query":{"mlt\_field":{"text":{"like\_text":"ministers of defense","min\_term\_freq":1,"max\_query\_terms":12}},"query\_string":{"fields":["text"],"query":"(entities.people:"government" OR entities.people:"government") AND text:"government""}},"fields":["id","locations","ratings"]}

I get a parse error.

What's the trick to add a query or filter to mlt\_field? The documentation doesn't clarify this.

## thank you!!!

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For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).

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For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out).

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**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, 1:59am UTC](https://discuss.elastic.co/t/is-there-a-way-to-combine-query-string-with-mlt-field/14993/3 "2017-07-06T01:59:40Z")

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