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https://issues.apache.org/jira/browse/BEAM-8365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles updated BEAM-8365:
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Status: Open (was: Triage Needed)
> Add project push-down capability to IO APIs
> -------------------------------------------
>
> Key: BEAM-8365
> URL: https://issues.apache.org/jira/browse/BEAM-8365
> Project: Beam
> Issue Type: New Feature
> Components: dsl-sql
> Reporter: Kirill Kozlov
> Assignee: Kirill Kozlov
> Priority: Minor
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> * InMemoryTable should implement a following method:
> {code:java}
> public PCollection<Row> buildIOReader(
> PBegin begin, BeamSqlTableFilter filters, List<String> fieldNames);{code}
> Which should return a `PCollection` with fields specified in `fieldNames`
> list.
> * Create a rule to push fields used by a Calc (in projects and in a
> condition) down into TestTable IO.
> * Updating that same Calc (from previous step) to have a proper input and
> output schemes, remove unused fields.
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