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https://issues.apache.org/jira/browse/FLINK-3225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15123416#comment-15123416
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ASF GitHub Bot commented on FLINK-3225:
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Github user twalthr commented on the pull request:
https://github.com/apache/flink/pull/1559#issuecomment-176727999
+1 for merging
> Optimize logical Table API plans in Calcite
> -------------------------------------------
>
> Key: FLINK-3225
> URL: https://issues.apache.org/jira/browse/FLINK-3225
> Project: Flink
> Issue Type: Sub-task
> Components: Table API
> Reporter: Fabian Hueske
> Assignee: Fabian Hueske
>
> This task implements the optimization of logical Table API plans with Apache
> Calcite. The input of the optimization process is a logical query plan
> consisting of Calcite RelNodes. FLINK-3223 translates Table API queries into
> this representation.
> The result of this issue is an optimized logical plan.
> Calcite's rule-based optimizer applies query rewriting and optimization
> rules. For Batch SQL, we can use (a subset of) Calcite’s default optimization
> rules.
> For this issue we have to
> - add the Calcite optimizer to the translation process
> - select an appropriate set of batch optimization rules from Calcite’s
> default rules. We can reuse the rules selected by Timo’s first SQL
> implementation.
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