# Elasticsearch innerhits difference between docvalue\_fields and include and exclude
**URL:** https://discuss.elastic.co/t/elasticsearch-innerhits-difference-between-docvalue-fields-and-include-and-exclude/207849
**Category:** Elasticsearch
**Created:** [November 14, 2019, 9:30am UTC](https://discuss.elastic.co/t/elasticsearch-innerhits-difference-between-docvalue-fields-and-include-and-exclude/207849 "2019-11-14T09:30:34Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@sanju\_yadav](https://discuss.elastic.co/u/sanju_yadav)
#### Post date: [November 14, 2019, 9:30am UTC](https://discuss.elastic.co/t/elasticsearch-innerhits-difference-between-docvalue-fields-and-include-and-exclude/207849/1 "2019-11-14T09:30:34Z")
I have multiple nested fields in an index, while querying I need to find which documents match for which I was using inner\_hits with include in source fields which was having a performance hit, but as I moved to use docvalue\_fields its the query time is reduced.
how docvalue\_fields is improving the performance?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 12, 2019, 9:30am UTC](https://discuss.elastic.co/t/elasticsearch-innerhits-difference-between-docvalue-fields-and-include-and-exclude/207849/2 "2019-12-12T09:30:42Z")
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