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https://issues.apache.org/jira/browse/BEAM-13796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles updated BEAM-13796:
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Status: Open (was: Triage Needed)
> Projection pushdown in BigQuery IO
> ----------------------------------
>
> Key: BEAM-13796
> URL: https://issues.apache.org/jira/browse/BEAM-13796
> Project: Beam
> Issue Type: New Feature
> Components: io-java-gcp
> Reporter: Kyle Weaver
> Assignee: Kyle Weaver
> Priority: P2
>
> BigQuery IO (read API only) already supports pushdown within Beam SQL
> queries, but we want to support pushdown outside of just SQL.
> To do this, BigQuery Read needs to implement ProjectionProducer.
> https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/schemas/ProjectionProducer.java
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