[
https://issues.apache.org/jira/browse/CALCITE-2970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17097033#comment-17097033
]
Julian Hyde commented on CALCITE-2970:
--------------------------------------
I take some of that back. I see that {{RelBuilder}} has a method {{RelBuilder
transform(UnaryOperator<Config> transform)}} that creates a copy of a
{{RelBuilder}} with the same state (including context, cluster) but a different
config. So I think that {{UnaryOperator<Config> transform}} would be viable.
> Performance issue when enabling abstract converter for EnumerableConvention
> ---------------------------------------------------------------------------
>
> Key: CALCITE-2970
> URL: https://issues.apache.org/jira/browse/CALCITE-2970
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Haisheng Yuan
> Priority: Major
> Labels: pull-request-available
> Time Spent: 18h 20m
> Remaining Estimate: 0h
>
> If we enable the use of abstract converter for {{EnumerableConvention}}, by
> making {{useAbstractConvertersForConversion}} return true,
> {{JDBCTest.testJoinManyWay}} will not complete.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
