# Query checking difference of two terms in a log

**URL:** <https://discuss.elastic.co/t/query-checking-difference-of-two-terms-in-a-log/99381>\
**Category:** Elasticsearch\
**Created:** [September 5, 2017, 7:37am UTC](https://discuss.elastic.co/t/query-checking-difference-of-two-terms-in-a-log/99381 "2017-09-05T07:37:41Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\
**Post date:** [September 5, 2017, 7:39am UTC](https://discuss.elastic.co/t/query-checking-difference-of-two-terms-in-a-log/99381/2 "2017-09-05T07:39:18Z")

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See [How to calculate duration in aggregation?](https://discuss.elastic.co/t/how-to-calculate-duration-in-aggregation/53644/4?u=mark_harwood)

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