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https://issues.apache.org/jira/browse/FLINK-25592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn Visser updated FLINK-25592:
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Fix Version/s: 1.16.0
> Improvement of parser, optimizer and execution for Flink Batch SQL
> ------------------------------------------------------------------
>
> Key: FLINK-25592
> URL: https://issues.apache.org/jira/browse/FLINK-25592
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API, Table SQL / Planner, Table SQL / Runtime
> Reporter: Jing Zhang
> Priority: Major
> Fix For: 1.16.0
>
>
> This is a parent JIRA to track improvements on Flink Batch SQL, including
> parser, optimizer and execution.
> For example,
> 1. using Hive dialect and default dialect, some sql query would be translated
> into different plans
> 2. specify hash/sort aggregate strategy and hash/sort merge join strategy in
> sql hint
> 3. take parquet metadata into consideration in optimization
> 4. and so on
> Please note, some improvements are not limited to batch sql. Maybe streaming
> sql job could also benefits from some improvements in this JIRA.
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