为什么在搜索此类文档时此查询不使用此索引?
我的查询:
{
"unique_contact_method.enrichments": {
"$not": {
"$elemMatch": {
"created_by.name":enrichment_name
}}}}
我的索引:
{ key: { "unique_contact_method.enrichments.created_by.name": 1 }, ... }
我的文件:
{
"created_at": "...",
"unique_contact_method": {
"type" : "...",
"handle": "...",
"enrichments": [{
"created_at" : "...",
"created_by" : {
"name" : "...",
"version" : "..."
},
"attrs" : { /* ... */ }
}, /* ... */
],
"master_id_doc_id": "..."
}
}