# Can a Filter be Applied with "OR" Logic?
**URL:** https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959
**Category:** Elasticsearch
**Created:** [March 11, 2021, 2:52pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959 "2021-03-11T14:52:41Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@spyderman4g63](https://discuss.elastic.co/u/spyderman4g63)
#### Post date: [March 11, 2021, 2:52pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959/1 "2021-03-11T14:52:41Z")
I'm trying to mimic the functionality of another search engine. The functionality I want is that when a user selects a filter it first limits a search, as expected. However, I want to still return all possible aggregation values for the entire data set (not just the new filtered data set). When the user selects a subsequent filter it expands the number of results.
An Example of this functionality are Amazon's refinements:
When I select "Acer" it limits the results to only Acer. When I then select "HP" it expands the results to include Acer or HP.
I'm trying to utilize filters vs query because I don't want to affect relevance. Any ideas?
---
### Author:  [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)
#### Post date: [March 11, 2021, 3:06pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959/2 "2021-03-11T15:06:29Z")
Hi John. Check out [post filters](https://www.elastic.co/guide/en/elasticsearch/reference/7.11/filter-search-results.html#post-filter)
---
### Author:  [@spyderman4g63](https://discuss.elastic.co/u/spyderman4g63)
#### Post date: [March 17, 2021, 2:37pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959/3 "2021-03-17T14:37:45Z")
Thanks. Post\_filer might be what I want, but I can't seem to find any doc on using multiple `post_filter` conditions or passing an array to `post_filter`. Can you apply multiple `post_filter`s?
I am hoping for something like:
```auto
"post_filter": [
"term":{"color":"red"},
"term":{"color":"blue"}
]
```
---
### Author:  [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)
#### Post date: [March 17, 2021, 2:43pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959/4 "2021-03-17T14:43:46Z")
[bool](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html) queries are the way to combine multiple query clauses using Boolean logic. An array of `should` clauses would be the way to OR clauses.
If you only have `term` clauses for the same field a shorter way of doing this is to just use a [terms](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-terms-query.html) query.
---
### Author:  [@spyderman4g63](https://discuss.elastic.co/u/spyderman4g63)
#### Post date: [March 23, 2021, 2:37pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959/5 "2021-03-23T14:37:52Z")
Thanks again. I ended up with something like:
```
{
"post_filter":{
"bool":{
"should":{
{"term":{"color":"red"}},
{"term":{"color":"blue"}}
}
}
}
}
```
This has the effect I wanted for the color filter. I think I may need a mix of `post_fitter` and `filter` when combining multiple filters like "color" and "size".
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 20, 2021, 2:38pm UTC](https://discuss.elastic.co/t/can-a-filter-be-applied-with-or-logic/266959/6 "2021-04-20T14:38:26Z")
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