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Posted to issues@beam.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/12/06 18:27:00 UTC
[jira] [Work logged] (BEAM-8343) Add means for IO APIs to support
predicate and/or project push-down when running SQL pipelines
[ https://issues.apache.org/jira/browse/BEAM-8343?focusedWorklogId=355368&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-355368 ]
ASF GitHub Bot logged work on BEAM-8343:
----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Dec/19 18:26
Start Date: 06/Dec/19 18:26
Worklog Time Spent: 10m
Work Description: 11moon11 commented on issue #10060: [BEAM-8343] [SQL] Updated the cost model to favor IO with push-down.
URL: https://github.com/apache/beam/pull/10060#issuecomment-562685199
Friendly reminder, this PR need a review.
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Issue Time Tracking
-------------------
Worklog Id: (was: 355368)
Time Spent: 7h 10m (was: 7h)
> Add means for IO APIs to support predicate and/or project push-down when running SQL pipelines
> ----------------------------------------------------------------------------------------------
>
> Key: BEAM-8343
> URL: https://issues.apache.org/jira/browse/BEAM-8343
> Project: Beam
> Issue Type: New Feature
> Components: dsl-sql
> Reporter: Kirill Kozlov
> Assignee: Kirill Kozlov
> Priority: Major
> Fix For: 2.18.0
>
> Time Spent: 7h 10m
> Remaining Estimate: 0h
>
> The objective is to create a universal way for Beam SQL IO APIs to support predicate/project push-down.
> A proposed way to achieve that is by introducing an interface responsible for identifying what portion(s) of a Calc can be moved down to IO layer. Also, adding following methods to a BeamSqlTable interface to pass necessary parameters to IO APIs:
> - BeamSqlTableFilter constructFilter(List<RexNode> filter)
> - ProjectSupport supportsProjects()
> - PCollection<Row> buildIOReader(PBegin begin, BeamSqlTableFilter filters, List<String> fieldNames)
>
> ProjectSupport is an enum with the following options:
> * NONE
> * WITHOUT_FIELD_REORDERING
> * WITH_FIELD_REORDERING
>
> Design doc [link|https://docs.google.com/document/d/1-ysD7U7qF3MAmSfkbXZO_5PLJBevAL9bktlLCerd_jE/edit?usp=sharing].
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