问题描述
我正在面对弹性搜索的问题,我不希望对我的索引项进行分析。但是弹性搜索有一些默认设置,它在空间上标记它。
因此,我的facet查询不返回我想要的结果。
I am facing a problem with elasticsearch where I dont want my indexed term to be analyzed. But the elasticsearch has some default setting which is tokenizing it on space.Therefore my facet query is not returning the result I want.
我读到索引类型属性中的index:not_analyzed
应该可以工作。
但问题是我手头不知道我的文档结构。我将索引随机的MySQL数据库到弹性搜索,而不知道表结构。
I read that "index" : "not_analyzed"
in properties of index type should work.But the problem is that I dont know my document structure before hand. I would be indexing random MySQL databases to elasticsearch without knowing the table structure.
我如何设置弹性搜索,默认情况下它使用index :not_analyzed
,直到另有要求。
谢谢
How can I setup elasticsearch such that by default it uses "index" : "not_analyzed"
until otherwise asked for.Thanks
PS:我正在使用java,如果我可以直接使用任何API,我会喜欢它。
PS: I am using java if I can directly use any API for it I would love it.
推荐答案
我会使用动态模板 - 它应该做你想要的东西:
I'd use dynamic templates - it should do what you are looking for:
{
"testtemplates" : {
"dynamic_templates" : [
{
"template1" : {
"match" : "*",
"match_mapping_type" : "string",
"mapping" : {
"type" : "string",
"index" : "not_analyzed"
}
}
}
]
}
}
这里有更多的方法:
重要提示:
如果有人建议这种方法来解决 not_analyzed 问题,它将无法正常工作!
关键字分析器对数据进行一些分析,并将数据转换为小写字母。
Important:If someone suggest this approach to solve the not_analyzed issue, it will not work!keyword analyzer does some analyzing on the data and convert the data to small letters.
例如
数据:ElasticSearchRocks ==>关键字分析器:elasticsearchrocks
自己尝试分析查询并看到它发生。
Try it yourself with analyzing query and see it happening.
curl -XPUT localhost:9200/testindex -d '{
"index" : {
"analysis" : {
"analyzer" : {
"default" : {
"type" : "keyword"
}
}
}
}
}'
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