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Posted to issues@flink.apache.org by "godfrey he (Jira)" <ji...@apache.org> on 2020/12/04 13:18:00 UTC
[jira] [Updated] (FLINK-20490) Don't share inputs between
FlinkPhysicalRel and ExecNode
[ https://issues.apache.org/jira/browse/FLINK-20490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
godfrey he updated FLINK-20490:
-------------------------------
Description:
Currently, all execution nodes extend both from {{RelNode}} and {{ExecNode}}, and they share same input instances which is stored in the {{RelNode}} instance. {{ExecNode#getInputNodes}} just returns the casted {{RelNode}} inputs, code likes:
{code:java}
getInputs.map(_.asInstanceOf[ExecNode[_]])
{code}
This issue aim to let {{ExecNode}} have its own input instances. It is prepared for the implementation separation between {{RelNode}} and {{ExecNode}}.
was:
Currently, all execution nodes extend both from {{RelNode}} and {{ExecNode}}, and they share same input instances which is stored in the {{RelNode}} instance. {{ExecNode#getInputNodes}} just returns the casted {{RelNode}} inputs, code likes:
{code:java}
getInputs.map(_.asInstanceOf[ExecNode[_]])
{code}
This issue aim to let {{ExecNode}} have its own input instance. It is prepared for the implementation separation between {{RelNode}} and {{ExecNode}}.
> Don't share inputs between FlinkPhysicalRel and ExecNode
> --------------------------------------------------------
>
> Key: FLINK-20490
> URL: https://issues.apache.org/jira/browse/FLINK-20490
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: godfrey he
> Assignee: godfrey he
> Priority: Major
>
> Currently, all execution nodes extend both from {{RelNode}} and {{ExecNode}}, and they share same input instances which is stored in the {{RelNode}} instance. {{ExecNode#getInputNodes}} just returns the casted {{RelNode}} inputs, code likes:
> {code:java}
> getInputs.map(_.asInstanceOf[ExecNode[_]])
> {code}
> This issue aim to let {{ExecNode}} have its own input instances. It is prepared for the implementation separation between {{RelNode}} and {{ExecNode}}.
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