为了在ElasticSearch中进行排序，找不到字段的映射 [英] No mapping found for field in order to sort on in ElasticSearch

问题描述

如果有一些文档没有包含在排序条件中使用的字段，则Elasticsearch会在解析查询时抛出一个 SearchParseException blockquote>

SearchParseException：解析失败[没有映射找到[价格]为了排序]

如何成功搜索这些文件，即使有些缺少价格字段？

解决方案

在挖掘更多之后，我找到了下面给出的解决方案。 ignore_unmapped 应该在sort子句中显式设置为 true 。

 sort：[
 {rating：{order：desc，ignore_unmapped：true}}，
 {price ：{order：asc，missing：_last，ignore_unmapped：true}} 
] 
  

Elasticsearch throws a SearchParseException while parsing query if there are some documents found not containing field used in sort criteria.

SearchParseException: Parse Failure [No mapping found for [price] in order to sort on]

How can I successfully search these documents, even if some are missing the price field?

解决方案

After digging more, I found the solution as given below. ignore_unmapped should be explicitly set to true in the sort clause.

"sort" : [
       { "rating": {"order" : "desc" , "ignore_unmapped" : true} },
       { "price": {"order" : "asc" , "missing" : "_last" , "ignore_unmapped" : true} }
]

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