> For the complete documentation index, see [llms.txt](https://xiaoxiami.gitbook.io/elasticsearch/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xiaoxiami.gitbook.io/elasticsearch/ji-chu/33-apis/343sou-suo-apis-search-apis/percolator-field-stats-api.md).

# Percolator / Field stats API

## Percolator

5.0.0中已经废弃，详情看：[官方文档](https://www.elastic.co/guide/en/elasticsearch/reference/5.5/search-percolate.html)

## Field stats API

5.４.0中已经废弃，详情看：[官方文档](https://www.elastic.co/guide/en/elasticsearch/reference/5.5/search-field-stats.html)