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https://issues.apache.org/jira/browse/BEAM-4449?focusedWorklogId=109099&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-109099
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ASF GitHub Bot logged work on BEAM-4449:
----------------------------------------
Author: ASF GitHub Bot
Created on: 05/Jun/18 14:54
Start Date: 05/Jun/18 14:54
Worklog Time Spent: 10m
Work Description: kennknowles commented on a change in pull request
#5544: [BEAM-4449] Replace project and filter with calc
URL: https://github.com/apache/beam/pull/5544#discussion_r193103984
##########
File path:
sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/planner/BeamRuleSets.java
##########
@@ -42,11 +49,18 @@
@Internal
public class BeamRuleSets {
- public static RuleSet[] getRuleSets() {
- return new RuleSet[] {
- RuleSets.ofList(
- BeamProjectRule.INSTANCE,
- BeamFilterRule.INSTANCE,
+ public static List<RelOptRule> LOGICAL_OPTIMIZATIONS =
+ ImmutableList.of(
+ // Rules so we only have to implement Calc
Review comment:
I believe FilterToCalcRule and ProjectToCalcRule eliminate all filters and
projects. But it is very hard to know with Calcite whether rules are
sufficient. I got no answer on their mailing list so it might just be we need a
huge test suite.
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Issue Time Tracking
-------------------
Worklog Id: (was: 109099)
Time Spent: 2h 20m (was: 2h 10m)
> 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: 2h 20m
> 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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