匹配一个字段中的所有部分单词
Match all partial words in one field
我有这个查询:
{
"query": {
"match": {
"tag": {
"query": "john smith",
"operator": "and"
}
}
}
}
使用 and 运算符我解决了 return 文档,其中单词 "john" 和 "smith" 必须以任何位置和顺序出现在标记字段中。但我需要 return 文档,其中所有 部分 单词必须出现在标签字段中,例如 "joh" 和 "smit"。我试试这个:
{
"query": {
"match": {
"tag": {
"query": "*joh* *smit*",
"operator": "and"
}
}
}
}
但没有 return。我该如何解决?
您可以使用 edge_ngram tokenizer and boolean query with multiple must
子句(使用您的示例 2)来获得所需的输出。
工作示例:
索引定义
{
"settings": {
"analysis": {
"filter": {
"autocomplete_filter": {
"type": "edge_ngram", --> note this
"min_gram": 1,
"max_gram": 10
}
},
"analyzer": {
"autocomplete": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
"autocomplete_filter"
]
}
}
}
},
"mappings": {
"properties": {
"title": {
"type": "text",
"analyzer": "autocomplete",
"search_analyzer": "standard"
}
}
}
}
索引两个示例文档,一个应该匹配,一个不应该匹配
{
"title" : "john bravo" --> show;dn't match
}
{
"title" : "john smith" --> should match
}
带有 must
子句的布尔搜索查询
{
"query": {
"bool": {
"must": [ --> this means both `jon` and `smit` match clause must match, replacement of your `and` operator.
{
"match": {
"title": "joh"
}
},
{
"match": {
"title": "smit"
}
}
]
}
}
}
搜索结果
"hits": [
{
"_index": "so_partial",
"_type": "_doc",
"_id": "1",
"_score": 1.2840209,
"_source": {
"title": "john smith"
}
}
]
我有这个查询:
{
"query": {
"match": {
"tag": {
"query": "john smith",
"operator": "and"
}
}
}
}
使用 and 运算符我解决了 return 文档,其中单词 "john" 和 "smith" 必须以任何位置和顺序出现在标记字段中。但我需要 return 文档,其中所有 部分 单词必须出现在标签字段中,例如 "joh" 和 "smit"。我试试这个:
{
"query": {
"match": {
"tag": {
"query": "*joh* *smit*",
"operator": "and"
}
}
}
}
但没有 return。我该如何解决?
您可以使用 edge_ngram tokenizer and boolean query with multiple must
子句(使用您的示例 2)来获得所需的输出。
工作示例:
索引定义
{
"settings": {
"analysis": {
"filter": {
"autocomplete_filter": {
"type": "edge_ngram", --> note this
"min_gram": 1,
"max_gram": 10
}
},
"analyzer": {
"autocomplete": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
"autocomplete_filter"
]
}
}
}
},
"mappings": {
"properties": {
"title": {
"type": "text",
"analyzer": "autocomplete",
"search_analyzer": "standard"
}
}
}
}
索引两个示例文档,一个应该匹配,一个不应该匹配
{
"title" : "john bravo" --> show;dn't match
}
{
"title" : "john smith" --> should match
}
带有 must
子句的布尔搜索查询
{
"query": {
"bool": {
"must": [ --> this means both `jon` and `smit` match clause must match, replacement of your `and` operator.
{
"match": {
"title": "joh"
}
},
{
"match": {
"title": "smit"
}
}
]
}
}
}
搜索结果
"hits": [
{
"_index": "so_partial",
"_type": "_doc",
"_id": "1",
"_score": 1.2840209,
"_source": {
"title": "john smith"
}
}
]