Full-text 通过复杂结构 Elasticsearch 进行搜索
Full-text search through complex structure Elasticsearch
如果在 Elasticsearch 中进行 full-text 搜索,我会遇到以下问题。我想搜索所有索引属性。但是,我的项目属性之一是一个非常复杂的 hashes/objects:
数组
[
{
"title": "Group 1 title",
"name": "Group 1 name",
"id": "group_1_id",
"items": [
{
"pos": "1",
"title": "Position 1 title"
},
{
"pos": "1.1",
"title": "Position 1.1 title",
"description": "<p>description</p>",
"extra_description": {
"rotation": "2 years",
"amount": "1.947m²"
},
"inputs": {
"unit_price": true,
"total_net": true
},
"additional_inputs": [
{
"name": "additonal_input_name",
"label": "Additional input label:",
"placeholder": "Additional input placeholder",
"description": "Additional input description",
"type": "text"
}
]
}
]
}
]
我的映射如下所示:
{:title=>{:type=>"text", :analyzer=>"english"},
:description=>{:type=>"text", :analyzer=>"english"},
:location=>{:type=>"keyword"},
:company=>{:type=>"keyword"},
:created_at=>{:type=>"date"},
:due_date=>{:type=>"date"},
:specification=>
{:type=>:nested,
:properties=>
{:id=>{:type=>"keyword"},
:title=>{:type=>"text"},
:items=>
{:type=>:nested,
:properties=>
{:pos=>{:type=>"keyword"},
:title=>{:type=>"text"},
:description=>{:type=>"text", :analyzer=>"english"},
:extra_description=>{:type=>:nested, :properties=>{:rotation=>{:type=>"keyword"}, :amount=>{:type=>"keyword"}}},
:additional_inputs=>
{:type=>:nested,
:properties=>
{:label=>{:type=>"keyword"},
:placeholder=>{:type=>"text"},
:description=>{:type=>"text"},
:type=>{:type=>"keyword"},
:name=>{:type=>"keyword"}
}
}
}
}
}
}
}
问题来了,如何正确的seek呢?对于没有嵌套的属性,它很有用,但是例如,我想在规范中按标题查找,没有返回结果。我都试过了:
query:
{ nested:
{
multi_match: {
query: keyword,
fields: ['title', 'description', 'company', 'location', 'specification']
}
}
}
或
{
nested: {
path: 'specification',
query: {
multi_match: {
query: keyword
}
}
}
}
没有任何结果。
编辑:
它与 elasticsearch-ruby
对应 Ruby。
我正在尝试通过以下方式查询:MODEL_NAME.all.search(query: with_specification("Group 1 title"))
其中 with_specification 是:
def with_specification(keyword)
{
bool: {
should: [
{
nested: {
path: 'specification',
query: {
bool: {
should: [
{
match: {
'specification.title': keyword,
}
},
{
multi_match: {
query: keyword,
fields: [
'specification.title',
'specification.id'
]
}
},
{
nested: {
path: 'specification.items',
query: {
match: {
'specification.items.title': keyword,
}
}
}
}
]
}
}
}
}
]
}
}
end
- 查询多层嵌套文档必须遵循certain schema.
- 不能同时对嵌套和非嵌套字段进行多重匹配and/or对不同路径下的嵌套字段进行查询。
您可以将查询包装在 bool-should 中,但请牢记以上 2 条规则:
GET your_index/_search
{
"query": {
"bool": {
"should": [
{
"nested": {
"path": "specification",
"query": {
"bool": {
"should": [
{
"match": {
"specification.title": "TEXT" <-- standalone match
}
},
{
"multi_match": { <-- multi-match but 1st level path
"query": "TEXT",
"fields": [
"specification.title",
"specification.id"
]
}
},
{
"nested": {
"path": "specification.items", <-- 2nd level path
"query": {
"match": {
"specification.items.title": "TEXT"
}
}
}
}
]
}
}
}
}
]
}
}
}
如果在 Elasticsearch 中进行 full-text 搜索,我会遇到以下问题。我想搜索所有索引属性。但是,我的项目属性之一是一个非常复杂的 hashes/objects:
数组[
{
"title": "Group 1 title",
"name": "Group 1 name",
"id": "group_1_id",
"items": [
{
"pos": "1",
"title": "Position 1 title"
},
{
"pos": "1.1",
"title": "Position 1.1 title",
"description": "<p>description</p>",
"extra_description": {
"rotation": "2 years",
"amount": "1.947m²"
},
"inputs": {
"unit_price": true,
"total_net": true
},
"additional_inputs": [
{
"name": "additonal_input_name",
"label": "Additional input label:",
"placeholder": "Additional input placeholder",
"description": "Additional input description",
"type": "text"
}
]
}
]
}
]
我的映射如下所示:
{:title=>{:type=>"text", :analyzer=>"english"},
:description=>{:type=>"text", :analyzer=>"english"},
:location=>{:type=>"keyword"},
:company=>{:type=>"keyword"},
:created_at=>{:type=>"date"},
:due_date=>{:type=>"date"},
:specification=>
{:type=>:nested,
:properties=>
{:id=>{:type=>"keyword"},
:title=>{:type=>"text"},
:items=>
{:type=>:nested,
:properties=>
{:pos=>{:type=>"keyword"},
:title=>{:type=>"text"},
:description=>{:type=>"text", :analyzer=>"english"},
:extra_description=>{:type=>:nested, :properties=>{:rotation=>{:type=>"keyword"}, :amount=>{:type=>"keyword"}}},
:additional_inputs=>
{:type=>:nested,
:properties=>
{:label=>{:type=>"keyword"},
:placeholder=>{:type=>"text"},
:description=>{:type=>"text"},
:type=>{:type=>"keyword"},
:name=>{:type=>"keyword"}
}
}
}
}
}
}
}
问题来了,如何正确的seek呢?对于没有嵌套的属性,它很有用,但是例如,我想在规范中按标题查找,没有返回结果。我都试过了:
query:
{ nested:
{
multi_match: {
query: keyword,
fields: ['title', 'description', 'company', 'location', 'specification']
}
}
}
或
{
nested: {
path: 'specification',
query: {
multi_match: {
query: keyword
}
}
}
}
没有任何结果。
编辑:
它与 elasticsearch-ruby
对应 Ruby。
我正在尝试通过以下方式查询:MODEL_NAME.all.search(query: with_specification("Group 1 title"))
其中 with_specification 是:
def with_specification(keyword)
{
bool: {
should: [
{
nested: {
path: 'specification',
query: {
bool: {
should: [
{
match: {
'specification.title': keyword,
}
},
{
multi_match: {
query: keyword,
fields: [
'specification.title',
'specification.id'
]
}
},
{
nested: {
path: 'specification.items',
query: {
match: {
'specification.items.title': keyword,
}
}
}
}
]
}
}
}
}
]
}
}
end
- 查询多层嵌套文档必须遵循certain schema.
- 不能同时对嵌套和非嵌套字段进行多重匹配and/or对不同路径下的嵌套字段进行查询。
您可以将查询包装在 bool-should 中,但请牢记以上 2 条规则:
GET your_index/_search
{
"query": {
"bool": {
"should": [
{
"nested": {
"path": "specification",
"query": {
"bool": {
"should": [
{
"match": {
"specification.title": "TEXT" <-- standalone match
}
},
{
"multi_match": { <-- multi-match but 1st level path
"query": "TEXT",
"fields": [
"specification.title",
"specification.id"
]
}
},
{
"nested": {
"path": "specification.items", <-- 2nd level path
"query": {
"match": {
"specification.items.title": "TEXT"
}
}
}
}
]
}
}
}
}
]
}
}
}