本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

索引屬性：名稱

支援的索引類型

使用名稱選項來提供索引的選用名稱。

所有範例都使用下列範例文件：

{
  "productId": "PROD133726",
  "sku": "SKU24224",
  "name": "Basic Printer",
  "manufacturer": "The Manufacturer",
  "tags": [ "printer", "basic", "electronics", "business" ],
  "barcodes": [ "542364671", "886330670", "437445606" ],
  "reviews": [
    {
      "review_date": ISODate('2024-01-19T21:37:10.585Z'),
      ...
    }
  ],
  "material": "Polycarbonate",
  "color": "Space Gray",
  "supplier": {
    "supplierId": "SUP4",
    "location": {
      "type": "Point",
      "coordinates": [ -71.0589, 42.3601 ]
    }
  },
  "productEmbedding": [
    -0.019320633663838058,
    0.019672111388113596
  ],
  "lastUpdated": ISODate('2025-10-20T21:37:10.585Z')
}

單一欄位

db.collection.createIndex(
  {
    "productId": 1
  },
  {
    "name": "single_field_index"
  }
)

複合

db.collection.createIndex(
  {
    "productId": 1,
    "manufacturer": 1
  },
  {
    "name": "compound_index"
  }
)

多金鑰

db.collection.createIndex(
  {
    "tags": 1
  },
  {
    "name": "multikey_index"
  }
)

文字

db.collection.createIndex(
  {
    "name": "text"
  },
  {
    "name": "text_index"
  }
)

Geospatial (地理空間)

db.collection.createIndex(
  {
    "supplier.location": "2dsphere"
  },
  {
    "name": "geospatial_index"
  }
)

向量

db.runCommand({
  "createIndexes": "collection", 
  "indexes": [{
    "key": {
      "productEmbedding": "vector"
    },
    "name": "hnsw_index",
    "vectorOptions": {
      "type": "hnsw",
      "dimensions": 2,
      "similarity": "euclidean",
      "m": 16,
      "efConstruction": 64
    }
  }] 
})