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https://issues.apache.org/jira/browse/FLINK-10871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16691527#comment-16691527
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Fabian Hueske commented on FLINK-10871:
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[~hequn8128] What would be the goal of the {{contextTableEnvFactory}}?
Automatically determining whether to create a {{BatchTableEnvironment}} or a
{{StreamTableEnvironment}}?
I would like that, but how would we determine with one to create?
> ExecutionEnvironment & TableEnvironment should be singleton
> -----------------------------------------------------------
>
> Key: FLINK-10871
> URL: https://issues.apache.org/jira/browse/FLINK-10871
> Project: Flink
> Issue Type: Improvement
> Reporter: Jeff Zhang
> Assignee: Hequn Cheng
> Priority: Minor
>
> For now, ExecutionEnvironment.getExecutionEnvironment and
> TableEnvironment.getTableEnvironment will always create a new object, I think
> singleton should be sufficient for flink app unless I misunderstand it.
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