我有两个索引 - 一个用于Application模型，另一个用于Databases模型（多对多关系）。
每个文档都被非规范化以包含来自其他模型的属性
Application
|_ vendor_name
|_ databases
|_ db_1
|_ db_2
Database
|_ database_applications
|_ app_1
|_vendor_name
|_ app_2
|_ vendor_name
执行供应商名称的多索引搜索 - 似乎我从两个索引中获得了正确的结果。
挑战是在vendor_name字段上正确聚合
当结果仅来自数据库时，使用以下聚合的似乎有效。我也试过field: '*vendor_name'，但似乎无法工作。
我错过了什么？模型应该改变吗？
aggregation:
vendor_name: {
terms: {
field: "database_applications.vendor_name"
}
}
根据@ Andrie-Stefan - 这里更准确地表示了两个索引映射（缩写为shortness）：
数据库
{
"company-company_databases": {
"aliases": {},
"mappings": {
"company_database": {
"properties": {
"company_applications": {
"properties": {
"application_id": {
"type": "long"
},
"application_name": {
"type": "string"
},
"business_owner": {
"type": "string"
},
"company_system_applications": {
"properties": {
"allow_add_request": {
"type": "string"
},
"allow_remove_request": {
"type": "string"
},
"asset_type": {
"type": "string"
},
"company_application_id": {
"type": "long"
},
"company_application_name": {
"type": "string"
},
"company_business_owner": {
"type": "string"
},
"company_division_id": {
"type": "long"
},
"company_it_app_steward": {
"type": "string"
},
"company_notes": {
"type": "string"
},
"company_system_id": {
"type": "long"
},
"company_vendor": {
"type": "string"
},
"id": {
"type": "long"
},
"it_app_steward": {
"type": "string"
},
"it_owner": {
"type": "string"
},
"last_modified": {
"type": "string"
},
"last_modified_by": {
"type": "string"
},
"media_location": {
"type": "string"
},
"media_source": {
"type": "string"
},
"name": {
"type": "string"
},
"owned_by": {
"type": "string"
},
"status": {
"type": "string"
},
"status_id": {
"type": "long"
},
"system_application": {
"properties": {
"division": {
"type": "string"
},
"id": {
"type": "long"
},
"name": {
"type": "string"
},
"owner_id": {
"type": "string"
},
"status": {
"type": "string"
},
"steward_id": {
"type": "string"
},
"vendor_name": {
"type": "string"
},
"vendor_url_web_site": {
"type": "string"
},
"version": {
"type": "string"
}
}
},
"vendor_name": {
"type": "string",
"fields": {
"raw": {
"type": "string",
"index": "not_analyzed"
}
}
},
"version": {
"type": "string"
}
}
},
"division_id": {
"type": "long"
},
"it_app_steward": {
"type": "string"
},
"notes": {
"type": "string"
},
"software_inventory_id": {
"type": "long"
},
"vendor": {
"type": "string"
}
}
},
"company_instances": {
"properties": {
"business_environment_id": {
"type": "long"
},
"cgi_service_id": {
"type": "long"
},
"char_set": {
"type": "string"
},
"confirmed_license_purchase_dt": {
"type": "string"
},
"company_server": {
"properties": {
"business_environment_id": {
"type": "long"
},
"division_id": {
"type": "long"
},
"domain": {
"type": "string"
},
"hw_platform_id": {
"type": "long"
},
"ip_address": {
"type": "string"
},
"location_id": {
"type": "long"
},
"no_of_cpu": {
"type": "long"
},
"notes": {
"type": "string"
},
"os_platform_id": {
"type": "long"
},
"os_version": {
"type": "string"
},
"server_id": {
"type": "long"
},
"server_name": {
"type": "string"
}
}
},
"description": {
"type": "string"
},
"division_id": {
"type": "long"
},
"edition_id": {
"type": "long"
},
"instance_id": {
"type": "long"
},
"instance_name": {
"type": "string"
},
"itap_have_access": {
"type": "string"
},
"listener_port": {
"type": "long"
},
"notes": {
"type": "string"
},
"patch_number": {
"type": "string"
},
"rdbms_type_id": {
"type": "long"
},
"server_id": {
"type": "long"
},
"service_level_id": {
"type": "long"
},
"version": {
"type": "string"
}
}
},
"db_security_model_id": {
"type": "long"
},
"schema_or_db": {
"type": "string"
},
"schema_or_db_id": {
"type": "long"
},
"schema_or_db_type_id": {
"type": "long"
}
}
}
},
"settings": {
"index": {
"creation_date": "1442976578465",
"uuid": "TxQZoNSpR5qa2Y2ERZzuYw",
"number_of_replicas": "1",
"number_of_shards": "5",
"version": {
"created": "1070299"
}
}
},
"warmers": {}
}
}
应用
{
"applications": {
"aliases": {},
"mappings": {
"application": {
"properties": {
"application_view": {
"properties": {
"app_name": {
"type": "string"
},
"app_status": {
"type": "string"
},
"app_steward_name": {
"type": "string"
},
"app_suite": {
"type": "string"
},
"app_vendor_name": {
"type": "string"
},
"app_version": {
"type": "string"
},
"assignment_group": {
"type": "string"
},
"business_domain_name": {
"type": "string"
},
"exception": {
"type": "string"
},
"id": {
"type": "long"
},
"it_owner_name": {
"type": "string"
},
"service_level": {
"type": "string"
}
}
},
"assignment_group": {
"type": "string"
},
"company_databases": {
"properties": {
"backup_history_info": {
"type": "string"
},
"company_applications": {
"properties": {
"alternate_name": {
"type": "string"
},
"application_id": {
"type": "long"
},
"application_name": {
"type": "string"
},
"business_owner": {
"type": "string"
},
"company_system_applications": {
"properties": {
"aka": {
"type": "string"
},
"allow_add_request": {
"type": "string"
},
"allow_remove_request": {
"type": "string"
},
"asset_type": {
"type": "string"
},
"contract_number": {
"type": "string"
},
"cost_level": {
"type": "string"
},
"company_alternate_name": {
"type": "string"
},
"company_application_id": {
"type": "long"
},
"company_application_name": {
"type": "string"
},
"company_business_owner": {
"type": "string"
},
"company_division_id": {
"type": "long"
},
"company_it_app_steward": {
"type": "string"
},
"company_notes": {
"type": "string"
},
"company_system_id": {
"type": "long"
},
"company_vendor": {
"type": "string"
},
"description": {
"type": "string"
},
"display_in_catalog": {
"type": "string"
},
"id": {
"type": "long"
},
"inform_of_removal": {
"type": "string"
},
"is_restricted": {
"type": "string"
},
"it_app_steward": {
"type": "string"
},
"it_owner": {
"type": "string"
},
"last_modified": {
"type": "string"
},
"last_modified_by": {
"type": "string"
},
"media_location": {
"type": "string"
},
"media_source": {
"type": "string"
},
"name": {
"type": "string"
},
"os_environment": {
"type": "string"
},
"owned_by": {
"type": "string"
},
"retirement_date": {
"type": "date",
"format": "dateOptionalTime"
},
"status": {
"type": "string"
},
"status_id": {
"type": "long"
},
"suite_name": {
"type": "string"
},
"system_application": {
"properties": {
"assignment_group": {
"type": "string"
},
"division": {
"type": "string"
},
"id": {
"type": "long"
},
"name": {
"type": "string"
},
"owner_id": {
"type": "string"
},
"status": {
"type": "string"
},
"steward_id": {
"type": "string"
},
"suite": {
"type": "string"
},
"vendor_name": {
"type": "string"
},
"vendor_url_web_site": {
"type": "string"
},
"version": {
"type": "string"
}
}
},
"vendor_name": {
"type": "string"
},
"version": {
"type": "string"
}
}
},
"division_id": {
"type": "long"
},
"it_app_steward": {
"type": "string"
},
"notes": {
"type": "string"
},
"software_inventory_id": {
"type": "long"
},
"vendor": {
"type": "string"
}
}
},
"company_instances": {
"properties": {
"business_environment_id": {
"type": "long"
},
"cgi_service_id": {
"type": "long"
},
"char_set": {
"type": "string"
},
"confirmed_license_purchase_dt": {
"type": "string"
},
"company_server": {
"properties": {
"business_environment_id": {
"type": "long"
},
"division_id": {
"type": "long"
},
"domain": {
"type": "string"
},
"hw_platform_id": {
"type": "long"
},
"ip_address": {
"type": "string"
},
"location_id": {
"type": "long"
},
"no_of_cpu": {
"type": "long"
},
"notes": {
"type": "string"
},
"os_platform_id": {
"type": "long"
},
"os_version": {
"type": "string"
},
"server_id": {
"type": "long"
},
"server_name": {
"type": "string"
}
}
},
"description": {
"type": "string"
},
"division_id": {
"type": "long"
},
"edition_id": {
"type": "long"
},
"instance_id": {
"type": "long"
},
"instance_name": {
"type": "string"
},
"itap_have_access": {
"type": "string"
},
"listener_port": {
"type": "long"
},
"location_id": {
"type": "long"
},
"notes": {
"type": "string"
},
"patch_number": {
"type": "string"
},
"rdbms_type_id": {
"type": "long"
},
"server_id": {
"type": "long"
},
"service_level_id": {
"type": "long"
},
"version": {
"type": "string"
}
}
},
"db_security_model_id": {
"type": "long"
},
"notes": {
"type": "string"
},
"schema_or_db": {
"type": "string"
},
"schema_or_db_id": {
"type": "long"
},
"schema_or_db_type_id": {
"type": "long"
}
}
},
"division": {
"type": "string",
"fields": {
"raw": {
"type": "string",
"index": "not_analyzed"
}
}
},
"id": {
"type": "long"
},
"name": {
"type": "string"
},
"owner": {
"properties": {
"email_address": {
"type": "string"
},
"id": {
"type": "long"
},
"name": {
"type": "string",
"fields": {
"raw": {
"type": "string",
"index": "not_analyzed"
}
}
},
"search_type": {
"type": "string"
},
"user_id": {
"type": "string"
}
}
},
"owner_id": {
"type": "string"
},
"status": {
"type": "string",
"fields": {
"raw": {
"type": "string",
"index": "not_analyzed"
}
}
},
"steward": {
"properties": {
"email_address": {
"type": "string"
},
"id": {
"type": "long"
},
"name": {
"type": "string",
"fields": {
"raw": {
"type": "string",
"index": "not_analyzed"
}
}
},
"search_type": {
"type": "string"
},
"user_id": {
"type": "string"
}
}
},
"steward_id": {
"type": "string"
},
"suite": {
"type": "string"
},
"vendor_name": {
"type": "string",
"fields": {
"raw": {
"type": "string",
"index": "not_analyzed"
}
}
},
"vendor_url_web_site": {
"type": "string"
},
"version": {
"type": "string"
}
}
}
},
"settings": {
"index": {
"creation_date": "1442970067540",
"uuid": "O7DTaCSESbqhjJpv62T0Wg",
"number_of_replicas": "1",
"number_of_shards": "5",
"version": {
"created": "1070299"
}
}
},
"warmers": {}
}
}
答案 0 :(得分：1)
如果字段名称相同，则只能跨索引进行聚合。聚合字段没有通配符语法。
以下是您的映射当前定义的内容：
INDEX ：company-company_databases
TYPE ：company_database
字段名称：
company_applications.company_system_applications.vendor_name company_applications.company_system_applications.system_application.vendor_name INDEX ：applications
TYPE ：application
字段名称：
company_databases.company_applications.company_system_applications.vendor_name company_databases.company_applications.company_system_applications.system_application.vendor_name 就Elasticsearch而言，这些字段没有任何共同点（即使路径的一部分是vendor_name）。
如果您的目标是在跨越两个索引的查询中聚合vendor_name，请考虑重构索引/映射以实现此目的。
请注意Elasticsearch doesn't model many-to-many relationships
如果您可以跨应用程序复制数据库信息，您可以将您的关系重新制定为层次结构，例如：
INDEX ：applications
-
TYPE ：application
FIELDS ：vendor_name等等......
-
TYPE ：database_application
FIELDS ：vendor_name，databases.<inner fields>等......
-
然后，您可以在同一字段路径vendor_name上汇总各种类型，并且可以查询单个applications索引。