langchain.document_loaders.duckdb_loader.DuckDBLoader¶
class langchain.document_loaders.duckdb_loader.DuckDBLoader(query: str, database: str = ':memory:', read_only: bool = False, config: Optional[Dict[str, str]] = None, page_content_columns: Optional[List[str]] = None, metadata_columns: Optional[List[str]] = None)[source]¶
Load from DuckDB.
Each document represents one row of the result. The page_content_columns
are written into the page_content of the document. The metadata_columns
are written into the metadata of the document. By default, all columns
are written into the page_content and none into the metadata.
Parameters
query – The query to execute.
database – The database to connect to. Defaults to “:memory:”.
read_only – Whether to open the database in read-only mode.
Defaults to False.
config – A dictionary of configuration options to pass to the database.
Optional.
page_content_columns – The columns to write into the page_content
of the document. Optional.
metadata_columns – The columns to write into the metadata of the document.
Optional.
Methods
__init__(query[, database, read_only, ...])
param query
The query to execute.
lazy_load()
A lazy loader for Documents.
load()
Load data into Document objects.
load_and_split([text_splitter])
Load Documents and split into chunks.
__init__(query: str, database: str = ':memory:', read_only: bool = False, config: Optional[Dict[str, str]] = None, page_content_columns: Optional[List[str]] = None, metadata_columns: Optional[List[str]] = None)[source]¶
Parameters
query – The query to execute.
database – The database to connect to. Defaults to “:memory:”.