langchain_community.document_loaders.max_compute.MaxComputeLoader¶

class langchain_community.document_loaders.max_compute.MaxComputeLoader(query: str, api_wrapper: MaxComputeAPIWrapper, *, page_content_columns: Optional[Sequence[str]] = None, metadata_columns: Optional[Sequence[str]] = None)[source]¶

Load from Alibaba Cloud MaxCompute table.

Initialize Alibaba Cloud MaxCompute document loader.

Parameters

  • query (str) – SQL query to execute.

  • api_wrapper (MaxComputeAPIWrapper) – MaxCompute API wrapper.

  • page_content_columns (Optional[Sequence[str]]) – The columns to write into the page_content of the Document. If unspecified, all columns will be written to page_content.

  • metadata_columns (Optional[Sequence[str]]) – The columns to write into the metadata of the Document. If unspecified, all columns not added to page_content will be written.

Methods

__init__(query, api_wrapper, *[, ...])

Initialize Alibaba Cloud MaxCompute document loader.

alazy_load()

A lazy loader for Documents.

from_params(query, endpoint, project, *[, ...])

Convenience constructor that builds the MaxCompute API wrapper from

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, api_wrapper: MaxComputeAPIWrapper, *, page_content_columns: Optional[Sequence[str]] = None, metadata_columns: Optional[Sequence[str]] = None)[source]¶

Initialize Alibaba Cloud MaxCompute document loader.

Parameters

  • query (str) – SQL query to execute.

  • api_wrapper (MaxComputeAPIWrapper) – MaxCompute API wrapper.

  • page_content_columns (Optional[Sequence[str]]) – The columns to write into the page_content of the Document. If unspecified, all columns will be written to page_content.

  • metadata_columns (Optional[Sequence[str]]) – The columns to write into the metadata of the Document. If unspecified, all columns not added to page_content will be written.

async alazy_load() → AsyncIterator[Document]¶

A lazy loader for Documents.

Return type

AsyncIterator[Document]

classmethod from_params(query: str, endpoint: str, project: str, *, access_id: Optional[str] = None, secret_access_key: Optional[str] = None, **kwargs: Any) → MaxComputeLoader[source]¶
Convenience constructor that builds the MaxCompute API wrapper from

given parameters.

Parameters

  • query (str) – SQL query to execute.

  • endpoint (str) – MaxCompute endpoint.

  • project (str) – A project is a basic organizational unit of MaxCompute, which is similar to a database.

  • access_id (Optional[str]) – MaxCompute access ID. Should be passed in directly or set as the environment variable MAX_COMPUTE_ACCESS_ID.

  • secret_access_key (Optional[str]) – MaxCompute secret access key. Should be passed in directly or set as the environment variable MAX_COMPUTE_SECRET_ACCESS_KEY.

  • kwargs (Any) –

Return type

MaxComputeLoader

lazy_load() → Iterator[Document][source]¶

A lazy loader for Documents.

Return type

Iterator[Document]

load() → List[Document]¶

Load data into Document objects.

Return type

List[Document]

load_and_split(text_splitter: Optional[TextSplitter] = None) → List[Document]¶

Load Documents and split into chunks. Chunks are returned as Documents.

Do not override this method. It should be considered to be deprecated!

Parameters

text_splitter (Optional[TextSplitter]) – TextSplitter instance to use for splitting documents. Defaults to RecursiveCharacterTextSplitter.

Returns

List of Documents.

Return type

List[Document]

Examples using MaxComputeLoader¶