Ahmet Altay created BEAM-4789:
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Summary: BigQueryIO WRITE_TRUNCATE documentation is out of date
Key: BEAM-4789
URL: https://issues.apache.org/jira/browse/BEAM-4789
Project: Beam
Issue Type: Improvement
Components: io-java-gcp, sdk-py-core
Reporter: Ahmet Altay
Assignee: Chamikara Jayalath
Apache Beam 2.5 documentation
([https://beam.apache.org/documentation/sdks/javadoc/2.5.0/]), states that
"WRITE_TRUNCATE
public static final BigQueryIO.Write.WriteDisposition WRITE_TRUNCATE
Specifies that write should replace a table.
The replacement *may occur in multiple steps* - for instance by first removing
the existing table, then creating a replacement, then filling it in. *This is
not an atomic operation*, and external programs may see the table in any of
these intermediate steps."
However WRITE_TRUNCATE is an atomic BigQuery operation. The documentation needs
to be updated.
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