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https://issues.apache.org/jira/browse/FLINK-6089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15937799#comment-15937799
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ASF GitHub Bot commented on FLINK-6089:
---------------------------------------
Github user shaoxuan-wang commented on a diff in the pull request:
https://github.com/apache/flink/pull/3564#discussion_r107594707
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/TableEnvironment.scala
---
@@ -162,6 +162,27 @@ abstract class TableEnvironment(val config:
TableConfig) {
}
/**
+ * Returns the decoration rule set for this environment
+ * including a custom RuleSet configuration.
--- End diff --
Do not unnecessarily break lines.
> Implement decoration phase for rewriting predicated logical plan after
> volcano optimization phase
> -------------------------------------------------------------------------------------------------
>
> Key: FLINK-6089
> URL: https://issues.apache.org/jira/browse/FLINK-6089
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Shaoxuan Wang
> Assignee: Hequn Cheng
>
> At present, there is no chance to modify the DataStreamRel tree after the
> volcano optimization. We consider to add a decoration phase after volcano
> optimization phase. Decoration phase is dedicated for rewriting predicated
> logical plan and is independent of cost module. After decoration phase is
> added, we get the chance to apply retraction rules at this phase.
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