数据备份，通过API指定db_collections参数时，请求报错

[liuylmr]

Current Behavior

swagger ui的接口文档中，Create backup的接口文档有如下参数，支持指定数据库名称db_collections

{ "async": true, "backup_name": "string", "collection_names": [ "string" ], "db_collections": "string", "force": true, "gc_pause_address": "string", "gc_pause_enable": true, "gc_pause_seconds": 0, "meta_only": true, "requestId": "string" }

执行如下备份请求时 curl --location --request POST 'http://xxx/api/v1/create' --header 'Content-Type: application/json' --data '{ "async": false, "backup_name": "charai_hello_backup", "collection_names": ["hello_backup"], "db_collections": "char_ai"}

请求报错： {"requestId":"bcd37f6e-384e-11ef-acbe-0cda411d1468","code":3,"msg":"ReadMapCB: expect { or n, but found c, error found in #1 byte of ...|char_ai|..., bigger context ...|char_ai|...","data":{"id":"bcd37f6e-384e-11ef-acbe-0cda411d1468","state_code":3,"errorMessage":"ReadMapCB: expect { or n, but found c, error found in #1 byte of ...|char_ai|..., bigger context ...|char_ai|...","start_time":1719909629839,"name":"charai_hello_backup2","size":0,"milvus_version":"v2.3.10"}}

Expected Behavior

正常备份指定数据库名称下的collections

Steps To Reproduce

Milvus standalone: v2.3.10
Milvus_backup :v0.4.16

Environment

No response

Anything else?

No response