Neville Li created BEAM-7922:
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Summary: 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
Reporter: Neville Li
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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