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https://issues.apache.org/jira/browse/BEAM-7922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17270516#comment-17270516
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Chamikara Madhusanka Jayalath commented on BEAM-7922:
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cc: [~kjung520]
> Storage API reads in BigQueryTableProvider
> ------------------------------------------
>
> Key: BEAM-7922
> URL: https://issues.apache.org/jira/browse/BEAM-7922
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql, io-java-gcp
> Reporter: Neville Li
> Priority: P3
> Fix For: 2.14.0
>
>
> Looks like {{BigQueryTable.buildIOReader}} is reading the entire table.
> It could probably be optimized to use BigQuery Storage API with
> `withReadOptions` and infer "selected fileds" column projection from
> {{Schema}}?
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