我在RoR中遇到多匹配查询问题。我有Elastic Search配置和工作，但我正在设置聚合，到目前为止似乎工作，但无论出于何种原因，我无法搜索我正在聚合的字段。这是我模型的摘录：
settings :index => { :number_of_shards => 1 } do
mapping do
indexes :id, index: :not_analyzed
indexes :name
indexes :summary
indexes :description
indexes :occasions, type: 'nested' do
indexes :id, type: 'integer'
indexes :occasion_name, type: 'string', index: :not_analyzed
...
end
end
end
def as_indexed_json(options = {})
self.as_json(only: [:id, :name, :summary, :description],
include: {
occasions: { only: [:id, :occasion_name] },
courses: { only: [:id, :course_name] },
allergens: { only: [:id, :allergen_name] },
cookingtechniques: { only: [:id, :name] },
cuisine: { only: [:id, :cuisine_name]}
})
end
class << self
def custom_search(query)
__elasticsearch__.search(query: multi_match_query(query), aggs: aggregations)
end
def multi_match_query(query)
{
multi_match:
{
query: query,
type: "best_fields",
fields: ["name^9", "summary^8", "cuisine_name^7", "description^6", "occasion_name^6", "course_name^6", "cookingtechniques.name^5"],
operator: "and"
}
}
end
我可以在multi_match_query中指定的所有字段中搜索＆＃34; occasion_name＆＃34;这恰好是我正在聚合的领域。我已检查该字段是否已正确编入索引（使用弹性搜索头插件）。我也能够在视图中显示聚合的occasion_names的facet。我尝试了我能想到的一切，包括删除聚合和在occasion_name上搜索，但仍然没有运气。 （我正在使用elasticsearch-rails gem）
非常感谢任何帮助。
编辑：
我从rails获得了这个ES查询：
@search=
#<Elasticsearch::Model::Searching::SearchRequest:0x007f91244df460
@definition=
{:index=>"recipes",
:type=>"recipe",
:body=>
{:query=>
{:multi_match=>
{:query=>"Christmas",
:type=>"best_fields",
:fields=>["name^9", "summary^8", "cuisine_name^7", "description^6", "occasion_name^6", "course_name^6", "cookingtechniques.name^5"],
:operator=>"and"}},
:aggs=>
{:occasion_aggregation=>
{:nested=>{:path=>"occasions"}, :aggs=>{:id_and_name=>{:terms=>{:script=>"doc['occasions.id'].value + '|' + doc['occasions.occasion_name'].join(' ')", :size=>35}}}}}}},
这是我用于测试的一个虚拟配方的所有索引的示例（内容毫无意义 - 我仅将其用于测试）：
{
"_index": "recipes",
"_type": "recipe",
"_id": "7",
"_version": 1,
"_score": 1,
"_source": {
"id": 7,
"name": "Mustard-stuffed chicken",
"summary": "This is so good we'd be surprised if this chicken fillet recipe doesn't become a firm favourite. Save it to your My Good Food collection and enjoy",
"description": "Heat oven to 200C/fan 180C/gas 6. Mix the cheeses and mustard together. Cut a slit into the side of each chicken breast, then stuff with the mustard mixture. Wrap each stuffed chicken breast with 2 bacon rashers – not too tightly, but enough to hold the chicken together. Season, place on a baking sheet and roast for 20-25 mins.",
"occasions": [
{
"id": 9,
"occasion_name": "Christmas"
}
,
{
"id": 7,
"occasion_name": "Halloween"
}
,
{
"id": 8,
"occasion_name": "Bonfire Night"
}
,
{
"id": 10,
"occasion_name": "New Year"
}
],
"courses": [
{
"id": 9,
"course_name": "Side Dish"
}
,
{
"id": 7,
"course_name": "Poultry"
}
,
{
"id": 8,
"course_name": "Salad"
}
,
{
"id": 10,
"course_name": "Soup"
}
],
"allergens": [
{
"id": 6,
"allergen_name": "Soya"
}
,
{
"id": 7,
"allergen_name": "Nut"
}
,
{
"id": 8,
"allergen_name": "Other"
}
,
{
"id": 1,
"allergen_name": "Dairy"
}
],
"cookingtechniques": [
{
"id": 15,
"name": "Browning"
}
],
"cuisine": {
"id": 1,
"cuisine_name": "African"
}
}
}
编辑2：
我设法按照@rahulroc的建议进行搜索工作，但现在我无法搜索任何其他内容......
def multi_match_query(query)
{
nested:{
path: 'occasions',
query:{
multi_match:
{
query: query,
type: "best_fields",
fields: ["name^9", "summary^8", "cuisine_name^7", "description^6", "occasion_name^6", "course_name^6", "cookingtechniques.name^5"],
operator: "and"
}
}
}
}
end
更新：添加多个嵌套字段 - 我正在尝试添加其余的聚合，但我遇到了类似的问题。我的最终目标是使用聚合作为过滤器，所以我需要在查询中添加大约4个嵌套字段（我也想让字段可搜索）这是@rahulroc提供的工作查询+另外一个我无法搜索的嵌套字段。和索引一样，一切正常，我可以显示新添加字段的聚合，但是我无法对其进行搜索。我尝试了此查询的不同变体，但我无法使其工作（其余字段仍在工作和可搜索 - 问题只是新字段）：
def multi_match_query(query)
{
bool: {
should: [
{
nested:{
path: 'occasions',
query: {
multi_match:
{
query: query,
type: "best_fields",
fields: ["occasion_name"]
}
}
}
},
{
nested:{
path: 'courses',
query: {
multi_match:
{
query: query,
type: "best_fields",
fields: ["course_name"]
}
}
}
},
{
multi_match: {
query: query,
fields:["name^9", "summary^8", "cuisine_name^7", "description^6"],
}
}
]
}
}
end
答案 0 :(得分：3)
您需要创建一个单独的嵌套子句来匹配嵌套字段
"query": {
"bool": {
"should": [
{
"nested": {
"path": "occassions",
"query": {
"multi_match": {
"query": "Christmas",
"fields": ["occassion_name^2"]
}
}
}
},
{
"multi_match": {
"query": "Christmas",
"fields":["name^9", "summary^8", "cuisine_name^7", "description^6","course_name^6"] }
}
]
}
}