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from __future__ import annotations

from import Iterator
from logging import Logger

from import Row

from import BigQueryHook

[docs]def bigquery_get_data( logger: Logger, dataset_id: str, table_id: str, big_query_hook: BigQueryHook, batch_size: int, selected_fields: list[str] | str | None, ) -> Iterator:"Fetching Data from:")"Dataset: %s ; Table: %s", dataset_id, table_id) i = 0 while True: rows: list[Row] = big_query_hook.list_rows( dataset_id=dataset_id, table_id=table_id, max_results=batch_size, selected_fields=selected_fields, start_index=i * batch_size, ) if len(rows) == 0:"Job Finished") return"Total Extracted rows: %s", len(rows) + i * batch_size) yield [row.values() for row in rows] i += 1

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