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https://issues.apache.org/jira/browse/BEAM-4449?focusedWorklogId=109247&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-109247
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ASF GitHub Bot logged work on BEAM-4449:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 05/Jun/18 23:10
            Start Date: 05/Jun/18 23:10
    Worklog Time Spent: 10m 
      Work Description: kennknowles commented on issue #5544: [BEAM-4449] 
Replace project and filter with calc
URL: https://github.com/apache/beam/pull/5544#issuecomment-394889156
 
 
   Also noting: `CalcRemoveRule` was not in the rule sets added here. It is a 
sibling class but something in the JDBC codepath caused it to be added. 
Browsing the rules that are nearby in that package, it looks like really there 
are a huge variety and you are intended to use a whole `Program`.

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 109247)
    Time Spent: 3h  (was: 2h 50m)

> Use Calc instead of Project and Filter separately
> -------------------------------------------------
>
>                 Key: BEAM-4449
>                 URL: https://issues.apache.org/jira/browse/BEAM-4449
>             Project: Beam
>          Issue Type: Improvement
>          Components: dsl-sql
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
>            Priority: Major
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> Calcite has a combined Calc operator that is amenable to more optimization, 
> and also means less code to manage as we adjust how the operators/expressions 
> are implemented.



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