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https://issues.apache.org/jira/browse/HIVE-12542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15062495#comment-15062495
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Pengcheng Xiong commented on HIVE-12542:
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[~jcamachorodriguez], either way is ok for me. thx
> Create HiveRelFactories
> -----------------------
>
> Key: HIVE-12542
> URL: https://issues.apache.org/jira/browse/HIVE-12542
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Affects Versions: 2.0.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-12542.01.patch, HIVE-12542.02.patch,
> HIVE-12542.patch
>
>
> Calcite 1.5.0 introduced the use of RelFactories to create the operators. In
> particular, RelFactories contains the factories for all the operators in the
> system. Although we can still implement old rules by providing each
> individual factory (the constructor is deprecated, but it won't be removed
> till Calcite 2.0.0 is out), new rules will only provide constructors based on
> RelFactories. Thus, we propose to migrate immediately to the new interface.
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