发生这种情况是因为 ElasticSearch 使用另一种工具进行字段检索:elasticsearch _source字段。 #elasticsearch _source 字段 _source字段是在索引时传递给 ElasticSearch 的 json。此字段在 ElasticSearch 中默认设置为 true,可以通过以下方式使用mappings禁用: 1 2 3 4 5"mappings": { "_source": { "enabled": false ...
弹性搜索(Elasticsearch)是一个开源的分布式搜索和分析引擎,它被广泛应用于各种应用场景,包括日志分析、全文搜索、实时数据分析等。弹性搜索的核心特点是高性能、可扩展性和灵活性。 stored_fields顺序是弹性搜索中的一个参数,用于指定返回的文档字段的顺序。当执行搜索操作时,可以通过设置stored_fields参数来指定需要返回的...
where the attributes are field names. These are used to store auxiliary information about the document, such as its title, url, or an identifier to access a database. The set of stored fields are what is returned for each hit when searching. This is keyed by document number.以文档ID作为...
There are various methods for retrieving fields in Elasticsearch, including: _source, stored_fields, fields & docvalue_fields. To retrieve...
StoredField 比较常见的应用就是 Elasticsearch 中的 _source 字段,用于存储写入的原始文档内容。 关键类 Lucene90CompressingStoredFieldsWriter public final class Lucene90CompressingStoredFieldsWriter extends StoredFieldsWriter { private final int chunkSize; // chunk 最大值,80KB private final int maxDocsPerChunk...
不支持嵌套对象. stored_fields: 可以用来取支持store的字段(需要显示指定store=true), 一般不推荐使用, 比起这个方式更推荐用_source...不支持嵌套对象可以完全禁用storefields: `"stored_fields": "_none"`, 禁用的话_source也不能访问...
The _search API has replaced fields with stored_fields in the request, but the response still uses fields. The GET API still uses fields for both the request and the response. Relates #18943 jpountz added >bug blocker discuss v5.0.0-beta1 labels Aug 25, 2016 Member jimczi commented Aug...
"Learn the basics of ElasticSearch" } } GET /library/books/_search { "_source" : ["book.title","book.contents"], "fields": [ "book.title", "book.contents" ], "query": { "nested": { "path": "book", "query": { "query_string" : { "query" : "ElasticSearch", "fields" :...
按文档存储,按docId排序,一条文档所有的stored field都存在一起,在fetch阶段使用。 https://www.elastic.co/guide/en/elasticsearch/guide/master/docvalues.html http://lucene.apache.org/core/8_3_0/core/org/apache/lucene/codecs/lucene50/Lucene50StoredFieldsFormat.html...
按文档存储,按docId排序,一条文档所有的stored field都存在一起,在fetch阶段使用。 https://www.elastic.co/guide/en/elasticsearch/guide/master/docvalues.html http://lucene.apache.org/core/8_3_0/core/org/apache/lucene/codecs/lucene50/Lucene50StoredFieldsFormat.html...