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https://issues.apache.org/jira/browse/BEAM-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594131#comment-16594131
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Stephen Johnston commented on BEAM-4685:
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[~chamikara] I think this is solvable by leaving off the partitioning info. It
seems this might be an API issue, not a Beam issue. Regardless of the
CREATE_DISPOSITION the API performs partitioning validation if it is sent in
the job information.
> Allow writing to time partitioned tables when CreateDisposition==CREATE_NEVER
> -----------------------------------------------------------------------------
>
> Key: BEAM-4685
> URL: https://issues.apache.org/jira/browse/BEAM-4685
> Project: Beam
> Issue Type: Improvement
> Components: io-java-gcp
> Reporter: Chamikara Jayalath
> Priority: Major
>
> Writing to time partitioned table fails when CreateDisposition==CREATE_NEVER
> with error "Table with field based partitioning must have a schema".
> This seems to be due to BigQuery not setting schema for this case.
> [https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/WriteTables.java#L114]
>
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