Elasticsearch聚合操做報錯解決辦法

1. 當根據一個類型爲text的字段idc進行聚合操做時，查詢語句以下：

{
  "aggs": {
    "top_10_states": {
      "terms": {
        "field": "idc"
      }
    }
  }
}

 

會報錯：

"Fielddata is disabled on text fields by default. Set fielddata=true on [idc] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory."

解決辦法，在構建查詢語句時，給字段添加.keyword便可解決：

{
  "aggs": {
    "top_10_states": {
      "terms": {
        "field": "idc.keyword"
      }
    }
  }
}