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https://issues.apache.org/jira/browse/BEAM-8365?focusedWorklogId=324626&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-324626
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ASF GitHub Bot logged work on BEAM-8365:
----------------------------------------
Author: ASF GitHub Bot
Created on: 07/Oct/19 21:38
Start Date: 07/Oct/19 21:38
Worklog Time Spent: 10m
Work Description: 11moon11 commented on pull request #9743: [BEAM-8365]
Project push-down for test table provider
URL: https://github.com/apache/beam/pull/9743
- Create a class extending InMemoryTable.
- Add a property "push_down" to TestTableProvider, which should allow user
to select version of InMemoryProvider to use: with project push-down, with
predicate push-down (will be implemented later), both (will be implemented
later), or none (default).
Based on top of #9731
Design doc
[link](https://docs.google.com/document/d/1-ysD7U7qF3MAmSfkbXZO_5PLJBevAL9bktlLCerd_jE/edit?usp=sharing).
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 324626)
Remaining Estimate: 0h
Time Spent: 10m
> 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: 10m
> Remaining Estimate: 0h
>
> * Create a class extending InMemoryTable and 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.
> * Add a property "push_down" to TestTableProvider, which should allow user
> to select version of InMemoryProvider to use: with project push-down, with
> predicate push-down (will be implemented later), both (will be implemented
> later), or without (default).
> * 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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