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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/03 21:54:46 UTC

[GitHub] [beam] kennknowles opened a new issue, #18977: BigQueryIO WRITE_TRUNCATE documentation is out of date

kennknowles opened a new issue, #18977:
URL: https://github.com/apache/beam/issues/18977

   Apache Beam 2.5 documentation ([https://beam.apache.org/documentation/sdks/javadoc/2.5.0/](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.
   
   Imported from Jira [BEAM-4789](https://issues.apache.org/jira/browse/BEAM-4789). Original Jira may contain additional context.
   Reported by: altay.


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