查询指定 Collection 配置

var (            
    ctx                 = context.Background()
    database            = "go-sdk-test-db"
    collectionName      = "go-sdk-test-coll"
)

db := client.Database(database)
result, _ := db.DescribeCollection(ctx, collectionName)
data, _ := json.Marshal(result)
log.Printf("DescribeCollection result: %+v", string(data))

{
	"databaseName": "go-sdk-test-db",
	"collectionName": "go-sdk-test-coll",
	"documentCount": 0,
	"alias": null,
	"shardNum": 1,
	"replicasNum": 0,
	"indexes": {
		"VectorIndex": [{
			"FieldName": "vector",
			"FieldType": "vector",
			"ElemType": "",
			"IndexType": "HNSW",
			"Dimension": 3,
			"MetricType": "COSINE",
			"IndexedCount": 0,
			"Params": {
				"M": 16,
				"EfConstruction": 200
			}
		}],
		"FilterIndex": [{
			"FieldName": "id",
			"FieldType": "string",
			"ElemType": "",
			"IndexType": "primaryKey"
		}, {
			"FieldName": "tag",
			"FieldType": "array",
			"ElemType": "",
			"IndexType": "filter"
		}, {
			"FieldName": "page",
			"FieldType": "uint64",
			"ElemType": "",
			"IndexType": "filter"
		}, {
			"FieldName": "bookName",
			"FieldType": "string",
			"ElemType": "",
			"IndexType": "filter"
		}]
	},
	"indexStatus": {
		"Status": "ready",
		"StartTime": "0001-01-01T00:00:00Z"
	},
	"embedding": {},
	"description": "test collection",
	"size": 0,
	"createTime": "2023-12-20T17:26:12Z"
}