[英]How to search a elasticsearch index by partial text of a field in the indexed document?
I have an ElsaticSearch index where I keep certain data. 我有一个ElsaticSearch索引,其中保存了某些数据。 Each document in the index has a field named file_name
in a nested document. 索引中的每个文档在嵌套文档中都有一个名为file_name
的字段。 So a doc looks like 所以文档看起来像
{
...
"file_data":{
"file_name": "sample_filename_acp24_20180223_1222.json"
}
...
}
I want my search to return above document if I search for sample
, filename
, acp24
and 20180223
and likewise. 如果我搜索sample
, filename
, acp24
和20180223
等,我希望我的搜索返回上面的文档。
So far I tried following analyzers and full text search queries. 到目前为止,我尝试了跟踪分析器和全文搜索查询。 But still it doesn't return the above doc if I searched for acp24
, 20180223
. 但仍然,如果我搜索了它不返回上述文档acp24
, 20180223
。
Index Mapping 索引对应
{
"index_name": {
"mappings": {
"type": {
"properties": {
"file_data": {
"type": "nested",
"properties": {
"file_name": {
"type": "text",
"analyzer": "keyword_analyzer",
"fields": {
"keyword": {
"type": "keyword",
"ignore_above": 256
}
}
}
}
}
}
}
}
}
}
Analyzer 分析仪
{
"analysis": {
"analyzer": {
"keyword_analyzer":{
"type": "pattern",
"pattern":"\\W|_",
"lowercase": true
}
}
}
}
Search Query 搜索查询
{
"query": {
"match_phrase_prefix": {
"_all": {
"query": "20180223",
"analyzer": "keyword_analyzer"
}
}
}
}
Any help on how to achieve this is very much appreciated. 非常感谢您提供有关如何实现此目标的帮助。 I have spent so many hours with this and still couldn't find a solution. 我花了很多时间来解决这个问题,但仍然找不到解决方案。
If I understand right, you could use the wildcard query : 如果我理解正确,则可以使用通配符查询 :
POST /my_index
{
"query" : {
"wildcard" : {
"file_data.file_name" : {
"wildcard" : "sample_*filename_acp24*", "boost" : 2.0
}
}
}
}
(tested with elasticsearch 6.1, might need to change the syntax for other versions) (经过elasticsearch 6.1的测试,可能需要更改其他版本的语法)
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