# Updating field boost values

**URL:** <https://discuss.elastic.co/t/updating-field-boost-values/8303>\
**Category:** Elasticsearch\
**Created:** [July 3, 2012, 11:57pm UTC](https://discuss.elastic.co/t/updating-field-boost-values/8303 "2012-07-03T23:57:45Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![William\_King](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/william_king/32/2631_2.png) [@William\_King](https://discuss.elastic.co/u/William_King)\
**Post date:** [July 3, 2012, 11:57pm UTC](https://discuss.elastic.co/t/updating-field-boost-values/8303/1 "2012-07-03T23:57:45Z")

</div>

Is it possible to update a field's boost value within a mapping (not the  
\_boost field, but a string, integer, date, etc. field) without re-indexing?  
If so, would it be applied to all existing documents in the index or just  
new documents?

---

<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 6, 2017, 3:21am UTC](https://discuss.elastic.co/t/updating-field-boost-values/8303/2 "2017-07-06T03:21:36Z")

</div>