# Lucene Query: Field containing another field

**URL:** <https://discuss.elastic.co/t/lucene-query-field-containing-another-field/47526>\
**Category:** Elasticsearch\
**Created:** [April 15, 2016, 5:12pm UTC](https://discuss.elastic.co/t/lucene-query-field-containing-another-field/47526 "2016-04-15T17:12:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![LinucksJunkie](https://avatars.discourse-cdn.com/v4/letter/l/7ba0ec/32.png) [@LinucksJunkie](https://discuss.elastic.co/u/LinucksJunkie)\
**Post date:** [April 15, 2016, 5:12pm UTC](https://discuss.elastic.co/t/lucene-query-field-containing-another-field/47526/1 "2016-04-15T17:12:43Z")

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I'm trying to run a search query within kibana where I need to pull back matches where Field1 does not contain Field2

for example:  
hostname:"[XXX.XXX.XXX.XXX](http://XXX.XXX.XXX.XXX)" NOT RelativeTargetName:eventlog.subject\_user\_name

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [April 16, 2016, 8:40pm UTC](https://discuss.elastic.co/t/lucene-query-field-containing-another-field/47526/2 "2016-04-16T20:40:19Z")

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That's almost a join, which ES cannot do.

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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 5, 2017, 10:58pm UTC](https://discuss.elastic.co/t/lucene-query-field-containing-another-field/47526/3 "2017-07-05T22:58:46Z")

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