# 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)