在搜索文档时,协方差有很大的支持,如下所述:
https://www.elastic.co/guide/en/elasticsearch/client/net-api/2.x/covariant-search-results.html
但是文件Api呢?-它支持协方差吗?
“所有工作的意义”中的示例:
PUT demo_covariant/car/1
{
"carname":"ford"
}
PUT demo_covariant/boat/2
{
"boatname":"speedy"
}
GET demo_covariant/boat,car/_search
{
"query": {"match_all": {}}
}
GET demo_covariant/boat/2
GET demo_covariant/car/1但是,在查询多个索引时,这不会产生任何结果:
GET demo_covariant/boat,car/2发布于 2016-06-14 16:08:03
使用此处描述的"_all“类型解决:https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-get.html#type
作品:
GET demo_covariant/_all/2https://stackoverflow.com/questions/37810594
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