弹性搜索：在嵌套对象中查找单词部分
我无法在嵌套对象中找到单词的部分内容。 只找到完整的单词。 我的分析仪配置如下：
{
"settings": {
"number_of_shards": 1,
"analysis": {
"filter": {
"word_part_filter": {
"type": "ngram",
"min_gram": 3,
"max_gram": 15
},
"word_part_front_filter": {
"type": "edgeNGram",
"min_gram": 2,
"max_gram": 15
},
"codeid_filter": {
"type": "pattern_replace",
"pattern": "[-/.:]",
"replacement": "",
"preserve_original": true
}
},
"char_filter": {
"umlaut_char_filter": {
"type": "mapping",
"mappings": [
"ö=>oe",
"ä=>ae",
"ü=>ue",
"Ã?=>ss",
"Ã?=>Oe",
"Ã?=>Ae",
"Ã?=>Ue"
]
}
},
"analyzer": {
"description_analyser_query": {
"type": "custom",
"char_filter": [
"html_strip"
],
"tokenizer": "standard",
"filter": [
"lowercase",
"stop",
"asciifolding"
]
},
"description_analyser_idx": {
"type": "custom",
"char_filter": [
"html_strip"
],
"tokenizer": "standard",
"filter": [
"lowercase",
"stop",
"asciifolding",
"word_part_filter"
]
},
"name_analyser_query": {
"type": "custom",
"char_filter": [
"umlaut_char_filter"
],
"tokenizer": "standard",
"filter": [
"lowercase",
"asciifolding"
]
},
"name_analyser_idx": {
"type": "custom",
"char_filter": [
"umlaut_char_filter"
],
"tokenizer": "standard",
"filter": [
"lowercase",
"asciifolding",
"word_part_filter"
]
},
"codeid_analyser_query": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"lowercase",
"codeid_filter"
]
},
"codeid_analyser_idx_front": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"lowercase",
"codeid_filter",
"word_part_front_filter"
]
},
"codeid_analyser_idx_any": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"lowercase",
"codeid_filter",
"word_part_filter"
]
}
}
}
}
}
这是嵌套的对象映射（提取）：
{
"properties": {
"aid": {
"type": "nested",
"properties": {
"tpid": {
"type": "string",
"analyzer": "codeid_analyser_idx_any"
},
"aid": {
"type": "string",
"analyzer": "codeid_analyser_idx_any"
}
}
}
}
}
我正在用这个查询（提取）进行搜索。 这里只有“嵌套”部分是必不可少的：
{
"query": {
"bool": {
"must": [
{
"bool": {
"should": [
{
"nested": {
"path": "aid",
"query": {
"bool": {
"must": {
"match": {
"aid.aid": {
"query": "1200",
"analyzer": "codeid_analyser_query"
}
}
},
"filter": {
"or": [
{
"match": {
"aid.tpid": "buyer_specific"
}
},
{
"match": {
"aid.tpid": "mytpid"
}
}
]
}
}
}
}
}
],
"minimum_should_match": 1
}
}
]
}
}
}
有一个元素aid = 120000008
在田间使用分析仪时，它什么都没有发现。 在嵌套对象映射和查询中完全不使用分析器时，只会找到全部单词（如“120000008”），而不是“1200”。 有任何想法吗？
实际上，使用ElasticSearch 5.2，使用名为test的索引，并将该映射应用于名为“product”的类型（仅重写滤镜部分以符合查询语言的发展），我可以获得正确的结果。 查询：
GET test/_search
{
"query": {
"bool": {
"must": [
{
"bool": {
"should": [
{
"nested": {
"path": "aid",
"query": {
"bool": {
"must": {
"match": {
"aid.aid": {
"query": "1200",
"analyzer": "codeid_analyser_query"
}
}
},
"filter": {
"terms": {
"aid.tpid": [
"mytpid",
"buyer_specific"
]
}
}
}
}
}
}
],
"minimum_should_match": 1
}
}
]
}
}
}
指数：
GET test/_search
{
"took": 8,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1,
"hits": [
{
"_index": "test",
"_type": "product",
"_id": "AVrJ1CSd-NyeQ4r64kP6",
"_score": 1,
"_source": {
"aid": {
"aid": "120000008",
"tpid": "mytpid"
}
}
}
]
}
}
分析器（我删除了元音过滤器，因为它在我的计算机上是无法读取的，并且不会改变测试结果，因为它不被使用）：
PUT test
{
"settings": {
"analysis": {
"filter": {
"word_part_filter": {
"type": "ngram",
"min_gram": 3,
"max_gram": 15
},
"word_part_front_filter": {
"type": "edgeNGram",
"min_gram": 2,
"max_gram": 15
},
"codeid_filter": {
"type": "pattern_replace",
"pattern": "[-/.:]",
"replacement": "",
"preserve_original": true
}
},
"analyzer": {
"description_analyser_query": {
"type": "custom",
"char_filter": [
"html_strip"
],
"tokenizer": "standard",
"filter": [
"lowercase",
"stop",
"asciifolding"
]
},
"description_analyser_idx": {
"type": "custom",
"char_filter": [
"html_strip"
],
"tokenizer": "standard",
"filter": [
"lowercase",
"stop",
"asciifolding",
"word_part_filter"
]
},
"codeid_analyser_query": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"lowercase",
"codeid_filter"
]
},
"codeid_analyser_idx_front": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"lowercase",
"codeid_filter",
"word_part_front_filter"
]
},
"codeid_analyser_idx_any": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"lowercase",
"codeid_filter",
"word_part_filter"
]
}
}
}
}
}
产品映射：
PUT test/_mapping/product
{
"properties": {
"aid": {
"type": "nested",
"properties": {
"tpid": {
"type": "string",
"analyzer": "codeid_analyser_idx_any"
},
"aid": {
"type": "string",
"analyzer": "codeid_analyser_idx_any"
}
}
}
}
}
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