udim commented on a change in pull request #13490:
URL: https://github.com/apache/beam/pull/13490#discussion_r536455152
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File path: sdks/python/apache_beam/io/gcp/bigquery_tools.py
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@@ -924,7 +924,8 @@ def get_or_create_table(
# If table exists already then handle the semantics for WRITE_EMPTY and
# WRITE_TRUNCATE write dispositions.
- if found_table:
+ if found_table and write_disposition in (
+ BigQueryDisposition.WRITE_EMPTY, BigQueryDisposition.WRITE_TRUNCATE):
table_empty = self._is_table_empty(project_id, dataset_id, table_id)
Review comment:
I think you can limit calling `_is_table_empty` for only when the
disposition is `WRITE_EMPTY`.
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