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Posted to issues@beam.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/09/03 15:57:00 UTC

[jira] [Work logged] (BEAM-6114) SQL join selection should be done in planner, not in expansion to PTransform

     [ https://issues.apache.org/jira/browse/BEAM-6114?focusedWorklogId=305662&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-305662 ]

ASF GitHub Bot logged work on BEAM-6114:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Sep/19 15:56
            Start Date: 03/Sep/19 15:56
    Worklog Time Spent: 10m 
      Work Description: amaliujia commented on issue #9453: [BEAM-6114] Handle Unsupported Lookup Joins in BeamSql
URL: https://github.com/apache/beam/pull/9453#issuecomment-527522279
 
 
   I was on a vocation and will take a look at this PR soon.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 305662)
    Time Spent: 4h  (was: 3h 50m)

> SQL join selection should be done in planner, not in expansion to PTransform
> ----------------------------------------------------------------------------
>
>                 Key: BEAM-6114
>                 URL: https://issues.apache.org/jira/browse/BEAM-6114
>             Project: Beam
>          Issue Type: Improvement
>          Components: dsl-sql
>            Reporter: Kenneth Knowles
>            Assignee: Rahul Patwari
>            Priority: Major
>             Fix For: 2.16.0
>
>          Time Spent: 4h
>  Remaining Estimate: 0h
>
> Currently Beam SQL joins all go through a single physical operator which has a single PTransform that does all join algorithms based on properties of its input PCollections as well as the relational algebra.
> A first step is to make the needed information part of the relational algebra, so it can choose a PTransform based on that, and the PTransforms can be simpler.
> Second step is to have separate (physical) relational operators for different join algorithms.



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