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{
	"data_source": { // required
		"type": "Minio", // required
		"address": "localhost:9000", // optional, milvus server will use its minio setting if without this value
		"accesskey_id": "minioadmin", // optional, milvus server will use its minio setting if without this value
		"accesskey_secret": "minioadmin", // optional, milvus server will use its minio setting if without this value
		"use_ssl": false, // optional, milvus server will use its minio setting if without this value
		"bucket_name": "aaamybucket" // optional, milvus server will use its minio setting if without this value
	},

	"internal_data": { // optional, external_data or internal_data. (external files include json, npy, etc. internal files are exported by milvus)
		"path": "xxx/xxx/xx", // relative path to the source storage where store the exported data
		"collections_mapping": { // optional, give a new name to collection during importing.
			"aaa": "bbb",
			"ccc": "ddd"
		}
	},

	"external_data": { // optional, external_data or internal_data. (external files include json, npy, etc. internal files are exported by milvus)
		"target_collection": "xxx", // target collection name
		"files": [ // required
			{
				"file": xxxx/xx.json, // required, relative path under the storage source defined by DataSource, currently support json/npy
				"type": "row_based", // required, row_based or column_based
				"fields_mapping": { // optional, specify the target fields which should be imported. Milvus will import all fields if this list is empty.
					"table.rows.id": "uid",
					"table.rows.year": "year",
					"table.rows.vector": "vector",
				}
			},
			{
				"file": xxxx/xx.json, // required, relative path under the storage source defined by DataSource, currently support json/npy
				"type": "column_based", // required, row_based or column_based
				"fields_mapping": { // optional, specify the target fields which should be imported. Milvus will import all fields if this list is empty.
					"table.columns.id": "uid",
					"table.columns.year": "year",
					"table.columns.vector": "vector",
				}
			},
			{
				"file": xxxx/xx.npy, // required, relative path under the storage source defined by DataSource, currently support json/npy
				"type": "column_based", // required, row_based or column_based
				"fields_mapping": { // optional, specify the target fields which should be imported. Milvus will import all fields if this list is empty.
					"vector": "vector",
				}
			}
		],
		"default_fields": { // optional, use default value to fill some fields
			"age": 0,
			"weight": 0.0
		},
	}
}