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https://issues.apache.org/jira/browse/BEAM-13753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17524454#comment-17524454
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Beam JIRA Bot commented on BEAM-13753:
--------------------------------------
This issue was marked "stale-P2" and has not received a public comment in 14
days. It is now automatically moved to P3. If you are still affected by it, you
can comment and move it back to P2.
> BigQuery Storage Write API fails with type mismatch error for DATE type
> -----------------------------------------------------------------------
>
> Key: BEAM-13753
> URL: https://issues.apache.org/jira/browse/BEAM-13753
> Project: Beam
> Issue Type: Bug
> Components: io-java-gcp
> Reporter: Minbo Bae
> Priority: P3
>
> If {{DATE}} type is specified in schema, {{BigQueryIO}} with Storage Write
> API may fail with the following error:
> {quote}Got error com.google.api.gax.rpc.InvalidArgumentException:
> io.grpc.StatusRuntimeException: INVALID_ARGUMENT: The proto field mismatched
> with BigQuery field at <table>, the proto field type string, BigQuery field
> type DATE Entity: <write_stream_name>
> ...
> {quote}
> {{DATE}} type in BEAM for BigQuery is converted to {{string}} in proto
> request [1], while BigQuery Storage Write API requires an integer type for
> {{DATE}} type in BigQuery [2].
> A workaround is to use {{INTEGER}} in BEAM and manually compute the number of
> days since epoch.
> Actually, a feature request to BigQuery is filed at [3]. If it's implemented,
> we can use {{DATE}} type successfully.
> [1]
> [https://github.com/apache/beam/blob/v2.35.0/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/TableRowToStorageApiProto.java#L55-L73]
> [2] [https://cloud.google.com/bigquery/docs/write-api#data_type_conversions]
> [3] [https://issuetracker.google.com/issues/205174128]
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