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Version: devel

dlt.dataset.relation

Relation Objects​

class Relation(SupportsRelation, WithSqlClient)

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__init__​

def __init__(*,
             readable_dataset: "Dataset",
             query: Optional[Union[str, sge.Query, IbisExpr]] = None,
             query_dialect: Optional[str] = None,
             table_name: Optional[str] = None,
             _execute_raw_query: bool = False) -> None

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Create a lazy evaluated relation for the dataset of a destination

cursor​

@contextmanager
def cursor() -> Generator[SupportsDataAccess, Any, Any]

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Gets a DBApiCursor for the current relation

to_sql​

def to_sql(pretty: bool = False, _raw_query: bool = False) -> str

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Returns an executable sql query string in the correct sql dialect for this relation

This demo works on codespaces. Codespaces is a development environment available for free to anyone with a Github account. You'll be asked to fork the demo repository and from there the README guides you with further steps.
The demo uses the Continue VSCode extension.

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