[BEAM-4789] BigQueryIO WRITE_TRUNCATE documentation is out of date

• Type: Improvement
• Status: Open
• Priority: P3
• Resolution: Unresolved
• Component/s: io-java-gcp, sdk-py-core
• Assignee: Unassigned
• Reporter: Ahmet Altay
• Created: 14/Jul/18 00:41
• Updated: 03/Jun/22 21:54

Description

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.