# Index time boosting can be more than 5?

**URL:** <https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128>\
**Category:** Elasticsearch\
**Created:** [August 10, 2015, 1:24pm UTC](https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128 "2015-08-10T13:24:39Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![anusha6](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@anusha6](https://discuss.elastic.co/u/anusha6)\
**Post date:** [August 10, 2015, 1:24pm UTC](https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128/1 "2015-08-10T13:24:39Z")

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Hi,  
I would like to give boosting to different fields at index time, for that we can give boost: 1,2,3,4,5 any of those values.

example for index time boost:

"Model": {  
"type": "string",  
"boost": 2,  
"index": "not\_analyzed",  
"norms": {  
"enabled": true  
},  
"fields": {  
"raw": {  
"type": "string"  
}  
}  
},  
"ModelCode": {  
"type": "string",  
"include\_in\_all": false  
},  
"ShortYear": {  
"type": "string",  
"boost": 4,  
"index": "not\_analyzed",  
"norms": {  
"enabled": true  
}  
}

In this way am using....

Where I have number of fields, such that I would like to give boost value even 6, 7, 8..  
Can I give boost value \>5?????  
Will this index time boosting works for nay type of query????

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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:** [August 11, 2015, 10:46am UTC](https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128/2 "2015-08-11T10:46:14Z")

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I don't think there is a practical limit to the boost factor you can apply.

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<div class="post-metadata">

**Author:** ![anusha6](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@anusha6](https://discuss.elastic.co/u/anusha6)\
**Post date:** [August 11, 2015, 1:29pm UTC](https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128/3 "2015-08-11T13:29:50Z")

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Thanks Mark

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<div class="post-metadata">

**Author:** ![jpountz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jpountz/32/45836_2.png) [@jpountz](https://discuss.elastic.co/u/jpountz)\
**Post date:** [August 11, 2015, 5:55pm UTC](https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128/4 "2015-08-11T17:55:31Z")

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This boost parameter will be merged with a factor for length normalization into what are called norms. These norms are encoded on one byte, so they are not very accurate. If you want to do per-field boosting, it's usually more flexible to do it at query time. Additionally, query-time boosts do not suffer from accuracy degradation like index-time boosts.

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<div class="post-metadata">

**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, 11:56pm UTC](https://discuss.elastic.co/t/index-time-boosting-can-be-more-than-5/27128/5 "2017-07-05T23:56:25Z")

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