弹性搜索-search_after参数 [英] Elastic search - search_after parameter

问题描述

我阅读了此文档了解 search_after并有两个问题。

I read this doc to understand 'search_after' and have two question.

1. 我很好奇 tweet＃654323的来源。这是
   文档ID或字段数据之一吗？



2. 当我添加search_after的多个参数时，是'and'
   条件还是'or'条件？

1. I'm curious that where "tweet#654323" comes from. Is this one of document id or field data?

2. When I added multiple parameter of search_after, Is that 'and' condition or 'or' condition?

ex） search_after：[1463538857，5147821]

ex) "search_after": [1463538857, 5147821]

推荐答案

1. 如该文档中所述， tweet＃654323 是 _uid 文档的值，该值由文档的 _type 和 _id 组成。

1. As mentioned in that doc, "tweet#654323" is the _uid value of the document, which is made up of the _type and the _id of the document.

在 search_after 中，您需要的值与排序子句，这些值的排序方式必须与sort子句中的排序方式相同。在 search_after：[1463538857，5147821] 中，您似乎正在按日期字段和其他ID字段进行排序。

You need as many values in search_after as you have sort clauses and those values must be ordered the same way as in your sort clause. In "search_after": [1463538857, 5147821], it looks like you're sorting by a date field and some other id field.

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