langchain.vectorstores.myscale.MyScaleSettings

class langchain.vectorstores.myscale.MyScaleSettings(_env_file: Optional[Union[str, PathLike, List[Union[str, PathLike]], Tuple[Union[str, PathLike], ...]]] = '<object object>', _env_file_encoding: Optional[str] = None, _env_nested_delimiter: Optional[str] = None, _secrets_dir: Optional[Union[str, PathLike]] = None, *, host: str = 'localhost', port: int = 8443, username: Optional[str] = None, password: Optional[str] = None, index_type: str = 'IVFFLAT', index_param: Optional[Dict[str, str]] = None, column_map: Dict[str, str] = {'id': 'id', 'metadata': 'metadata', 'text': 'text', 'vector': 'vector'}, database: str = 'default', table: str = 'langchain', metric: str = 'cosine')

Bases: BaseSettings

MyScale Client Configuration

Attribute:

myscale_host (str)An URL to connect to MyScale backend.

Defaults to ‘localhost’.

myscale_port (int) : URL port to connect with HTTP. Defaults to 8443. username (str) : Username to login. Defaults to None. password (str) : Password to login. Defaults to None. index_type (str): index type string. index_param (dict): index build parameter. database (str) : Database name to find the table. Defaults to ‘default’. table (str) : Table name to operate on.

Defaults to ‘vector_table’.

metric (str)Metric to compute distance,

supported are (‘l2’, ‘cosine’, ‘ip’). Defaults to ‘cosine’.

column_map (Dict)Column type map to project column name onto langchain

semantics. Must have keys: text, id, vector, must be same size to number of columns. For example: .. code-block:: python

{

‘id’: ‘text_id’, ‘vector’: ‘text_embedding’, ‘text’: ‘text_plain’, ‘metadata’: ‘metadata_dictionary_in_json’,

}

Defaults to identity map.

Create a new model by parsing and validating input data from keyword arguments.

Raises ValidationError if the input data cannot be parsed to form a valid model.

param column_map: Dict[str, str] = {'id': 'id', 'metadata': 'metadata', 'text': 'text', 'vector': 'vector'}

param database: str = 'default'

param host: str = 'localhost'

param index_param: Optional[Dict[str, str]] = None

param index_type: str = 'IVFFLAT'

param metric: str = 'cosine'

param password: Optional[str] = None

param port: int = 8443

param table: str = 'langchain'

param username: Optional[str] = None

model Config

Bases: object

env_file = '.env'

env_file_encoding = 'utf-8'

env_prefix = 'myscale_'

Examples using MyScaleSettings

• MyScale