# Boosting in multi\_field possible? **URL:** \ **Category:** Elasticsearch\ **Created:** [October 25, 2011, 4:20pm UTC](https://discuss.elastic.co/t/boosting-in-multi-field-possible/5679 "2011-10-25T16:20:04Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Lukas\_Vlcek1](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lukas_vlcek1/32/819_2.png) [@Lukas\_Vlcek1](https://discuss.elastic.co/u/Lukas_Vlcek1)\ **Post date:** [October 25, 2011, 4:20pm UTC](https://discuss.elastic.co/t/boosting-in-multi-field-possible/5679/1 "2011-10-25T16:20:04Z")
Hi, Is it possible to use boost in multi\_field mapping? Based on my quick review of the code it is not supported at the multi\_field level, only inside individual multi\_field fields but is the boost used when particular boosted field is part of \_all field? Regards, Lukas ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [October 25, 2011, 10:31pm UTC](https://discuss.elastic.co/t/boosting-in-multi-field-possible/5679/2 "2011-10-25T22:31:49Z")
You can boost specific fields, yes. Only the "main" field (the one named the same as the json field) will be included in the \_all field. On Tue, Oct 25, 2011 at 6:20 PM, Lukáš Vlček [lukas.vlcek@gmail.com](mailto:lukas.vlcek@gmail.com) wrote: > Hi, > > Is it possible to use boost in multi\_field mapping? > > Based on my quick review of the code it is not supported at the multi\_field > level, only inside individual multi\_field fields but is the boost used when > particular boosted field is part of \_all field? > > Regards, > Lukas ---
**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, 3:50am UTC](https://discuss.elastic.co/t/boosting-in-multi-field-possible/5679/3 "2017-07-06T03:50:59Z")