Chamikara Jayalath created BEAM-5216:
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Summary: BigQueryIO multi-partitioned write doesn't work for
streaming writes
Key: BEAM-5216
URL: https://issues.apache.org/jira/browse/BEAM-5216
Project: Beam
Issue Type: Bug
Components: io-java-gcp
Reporter: Chamikara Jayalath
BigQueryIO performes multi-partitioned write (MultiPartitionsWriteTables step)
when there's more data than the quota allowed by BigQuery (10k files or 11TB of
data) to be written to a single BQ table.
When writing using load jobs in streaming mode (with a triggering frequency) we
hit following location where we set CREATE_DISPOSITION to CREATE_NEVER for all
panes other than the first one. This is fine when we are writing a single
partition (all panes of a window should write to the same table) but when there
are multiple partitions this is incorrect since we need to create temp tables
for all panes.
[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#L165]
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