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https://issues.apache.org/jira/browse/BEAM-10595?focusedWorklogId=466415&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-466415
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ASF GitHub Bot logged work on BEAM-10595:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 04/Aug/20 19:40
Start Date: 04/Aug/20 19:40
Worklog Time Spent: 10m
Work Description: apilloud commented on a change in pull request #12400:
URL: https://github.com/apache/beam/pull/12400#discussion_r465286741
##########
File path:
sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/ZetaSQLQueryPlanner.java
##########
@@ -93,6 +95,14 @@ public ZetaSQLQueryPlanner(JdbcConnection jdbcConnection,
RuleSet[] ruleSets) {
// requires the JoinCommuteRule, which doesn't work without struct
flattening.
if (rule instanceof JoinCommuteRule) {
continue;
+ } else if (rule instanceof FilterCalcMergeRule || rule instanceof
ProjectCalcMergeRule) {
+ // In order to support Java UDF, we need both BeamZetaSqlCalcRel and
BeamCalcRel. It is
+ // because BeamZetaSqlCalcRel can execute ZetaSQL built-in functions
while BeamCalcRel
+ // can execute UDFs. So during planning, we expect both Filter and
Project are converted
+ // to Calc nodes before merging with other Project/Filter/Calc
nodes. Thus we should not
+ // add FilterCalcMergeRule and ProjectCalcMergeRule. CalcMergeRule
will achieve equivalent
+ // planning result eventually.
Review comment:
Shouldn't we just disable these rules all together (in
`BeamRuleSets.java`) if they are redundant instead of special casing them for
ZetaSQL?
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Issue Time Tracking
-------------------
Worklog Id: (was: 466415)
Time Spent: 1.5h (was: 1h 20m)
> Remove rules that not work well with Java UDF
> ---------------------------------------------
>
> Key: BEAM-10595
> URL: https://issues.apache.org/jira/browse/BEAM-10595
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql-zetasql
> Reporter: Rui Wang
> Assignee: Rui Wang
> Priority: P2
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> In order to support Java UDF, we need both BeamZetaSqlCalcRel and
> BeamCalcRel. It is
> because BeamZetaSqlCalcRel can execute ZetaSQL built-in functions while
> BeamCalcRel
> can execute UDFs. So during planning, we expect both Filter and Project are
> converted to
> a Calc before merging with other Projec/Filter/Calc. Thus we should not add
> FilterCalcMergeRuleand ProjectCalcMergeRule.
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