# Can anyone please explain me a query hierarchy?

**URL:** <https://discuss.elastic.co/t/can-anyone-please-explain-me-a-query-hierarchy/255904>\
**Category:** Elasticsearch\
**Created:** [November 18, 2020, 9:41pm UTC](https://discuss.elastic.co/t/can-anyone-please-explain-me-a-query-hierarchy/255904 "2020-11-18T21:41:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lessless](https://avatars.discourse-cdn.com/v4/letter/l/bc8723/32.png) [@lessless](https://discuss.elastic.co/u/lessless)\
**Post date:** [November 18, 2020, 9:41pm UTC](https://discuss.elastic.co/t/can-anyone-please-explain-me-a-query-hierarchy/255904/1 "2020-11-18T21:41:36Z")

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Hi,

today I faced a situation when putting filters in ` query -> bool -> filter -> bool -> should` and `query -> bool -> filter` lead to completely different results.

Can anyone explain to me why is that and also please tell me where I can learn about query hierarchy?

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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:** [December 16, 2020, 9:41pm UTC](https://discuss.elastic.co/t/can-anyone-please-explain-me-a-query-hierarchy/255904/2 "2020-12-16T21:41:50Z")

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Closed on December 16, 2020, 9:41pm UTC

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