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https://issues.apache.org/jira/browse/BEAM-6114?focusedWorklogId=168662&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-168662
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ASF GitHub Bot logged work on BEAM-6114:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Nov/18 05:28
Start Date: 22/Nov/18 05:28
Worklog Time Spent: 10m
Work Description: kennknowles opened a new pull request #7121:
[BEAM-6114] Add isBounded() to BeamRelNode and BeamSqlTable, use for JOIN
URL: https://github.com/apache/beam/pull/7121
Adds boundedness information to the SQL/Calcite planner's relational algebra
representation and uses it to select a join transform.
This builds on #7118 which separates the lookup join into its own
PTransform. In this PR, the non-lookup side input join and "standard" join are
also made into separate PTransforms.
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Post-Commit Tests Status (on master branch)
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Issue Time Tracking
-------------------
Worklog Id: (was: 168662)
Time Spent: 10m
Remaining Estimate: 0h
> 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: Kenneth Knowles
> Priority: Major
> Time Spent: 10m
> 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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