we have following structure in an index - following is only a partial and doc relevant for this question.
"instance" : {
"id" : 1,
{"instFields": [
{
"sourceFieldId": 2684,
"fieldValue": "false",
"fieldBoolean": false
},
{
"sourceFieldId": 1736,
"fieldValue": "DODGE",
"fieldString": "DODGE"
},
{
"sourceFieldId": 1560,
"fieldValue": "GRAY",
"fieldString": "GRAY"
},
{
"sourceFieldId": 1558,
"fieldValue": "CHALLENGER",
"fieldString": "CHALLENGER"
},
{
"sourceFieldId": 1556,
"fieldValue": "2010",
"fieldDouble": 2010
}
]
}
first user query is give me all instances where sourceFieldId=1736 - this returns all the DODGE instances[] - all this is working fine with an appripriate Elastic Search query. now when user is seeing all DODGE records - user wants to sort by any of those sourceFieldIds for e.g. say user is wanting to sort results by - color - sourceFieldId=1560.
say we have following sort query
{
"query": {
"bool": {
"filter": {
"bool": {
"must": [
{
"nested": {
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"bool": {
"must": [
{
"term": {
"instance.dataSourceId": "196"
}
},
{
"term": {
"instance.dsTypeId": "5"
}
},
{
"nested": {
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"bool": {
"must": [
{
"term": {
"instance.instFields.sourceFieldId": "1558"
}
},
{
"term": {
"instance.instFields.fieldString.raw": "challenger"
}
}
]
}
}
}
},
"path": "instance.instFields"
}
}
]
}
}
}
},
"path": "instance",
"inner_hits": {
"name": "inner_data"
}
}
},
{
"nested": {
"query": {
"bool": {
"should": {
"bool": {
"must": [
{
"match": {
"instance.entitlements.roleId": {
"query": "1",
"type": "boolean"
}
}
},
{
"match": {
"instance.entitlements.read": {
"query": "true",
"type": "boolean"
}
}
}
]
}
}
}
},
"path": "instance.entitlements"
}
}
]
}
}
}
},
"sort": {
"instance.instFields.fieldString.raw": {
"order": "asc",
"nested_path": "instance.instFields",
"nested_filter": {
"bool": {
"filter": {
"bool": {
"must": [
{
"nested": {
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"bool": {
"must": [
{
"term": {
"instance.dataSourceId": "196"
}
},
{
"term": {
"instance.dsTypeId": "5"
}
},
{
"nested": {
"query": {
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"bool": {
"must": [
{
"term": {
"instance.instFields.sourceFieldId": "1558"
}
},
{
"term": {
"instance.instFields.fieldString.raw": "challenger"
}
}
]
}
}
}
},
"path": "instance.instFields"
}
}
]
}
}
}
},
"path": "instance",
"inner_hits": {
"name": "inner_data1"
}
}
},
{
"nested": {
"query": {
"bool": {
"should": {
"bool": {
"must": [
{
"match": {
"instance.entitlements.roleId": {
"query": "1",
"type": "boolean"
}
}
},
{
"match": {
"instance.entitlements.read": {
"query": "true",
"type": "boolean"
}
}
}
]
}
}
}
},
"path": "instance.entitlements"
}
}
]
}
}
}
}
}
}
}
resulting docs must return entire instance with all the soureceFields - as on a user page it displays other values of DODGE as well.
now issue is- sort query still has to have knowledge to sort where - "sourceFieldId": 1560 (which is a sourceFieldId for color) to sort on color
is there a way to achieve such a sort query in ES without using dynamic scripting/dynamic templating? something like
"sort": {
"instance.instFields.fieldString.raw": (where sourceFieldId=1560?)
答案 0 :(得分：1)
应该可以使用sort
来自文档：
nested_filter嵌套路径中内部对象的过滤器 应匹配，以便将其字段值用于 按分类帐户。常见的情况是重复查询/过滤内部 嵌套过滤器或查询。默认情况下，没有nested_filter处于活动状态。
例如，要对颜色字段进行排序，它将是：
{
"sort": {
"instance.instFields.fieldValue.raws": {
"order": "asc",
"nested_path": "instance.instFields",
"nested_filter": {
"term": {
"instance.instFields.sourceFieldId": "1560"
}
}
}
}
}
被修改
"sort": [{
"instance.instFields.fieldValue": {
"order": "asc",
"nested_path": "instance.instFields",
"nested_filter": {
"term": {
"instance.instFields.sourceFieldId": "1560"
}
}
}
},
{
"instance.instFields.fieldValue": {
"order": "asc",
"nested_path": "instance.instFields",
"nested_filter": {
"term": {
"instance.instFields.sourceFieldId": "1558"
}
}
}
}
]