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[Python] Create temporary dataset with a 24 hour ttl. #39615

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[Python] Create temporary dataset with a 24 hour ttl. #39615

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7 changes: 7 additions & 0 deletions sdks/python/apache_beam/io/gcp/bigquery_tools.py
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,12 @@
"GEOGRAPHY": str,
}

# Duplicated logic with io/gcp/bigquery_change_history.py
# Default table expiration for auto-created temp datasets: 24 hours in ms.
# Tables created in the dataset auto-expire after this duration if not
# explicitly deleted, acting as a safety net for orphaned temp tables
# (e.g. pipeline crash before cleanup runs).
_DEFAULT_TABLE_EXPIRATION_MS = 24 * 60 * 60 * 1000

class FileFormat(object):
CSV = 'CSV'
Expand Down Expand Up @@ -952,6 +958,7 @@ def create_temporary_dataset(
project_id,
self.temp_dataset_id,
location=location,
default_table_expiration_ms=_DEFAULT_TABLE_EXPIRATION_MS,
labels=labels,
kms_key=kms_key)

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