概述编辑

SQL 搜索 API 接受 JSON 文档中的 SQL 语句,执行它并返回结果。例如

response = client.sql.query(
  format: 'txt',
  body: {
    query: 'SELECT * FROM library ORDER BY page_count DESC LIMIT 5'
  }
)
puts response
POST /_sql?format=txt
{
  "query": "SELECT * FROM library ORDER BY page_count DESC LIMIT 5"
}

返回

     author      |        name        |  page_count   | release_date
-----------------+--------------------+---------------+------------------------
Peter F. Hamilton|Pandora's Star      |768            |2004-03-02T00:00:00.000Z
Vernor Vinge     |A Fire Upon the Deep|613            |1992-06-01T00:00:00.000Z
Frank Herbert    |Dune                |604            |1965-06-01T00:00:00.000Z
Alastair Reynolds|Revelation Space    |585            |2000-03-15T00:00:00.000Z
James S.A. Corey |Leviathan Wakes     |561            |2011-06-02T00:00:00.000Z

使用 Kibana 控制台

如果您使用的是 Kibana 控制台(强烈推荐),在创建查询时利用三引号 """。这不仅会自动转义查询字符串中的双引号 ("),而且还支持多行,如下所示

console triple quotes