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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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Jing Zhang updated FLINK-25592:
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Description:
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/sortmerge join strategy in sql
hint
3. take parquet metadata into consideration in optimization
4. ....
Please note, the improvements are not limited to batch sql. Maybe streaming sql
job could also benefits from some improvements in this JIRA.
was:
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/sortmerge join strategy in sql
hint
3. take parquet metadata into consideration in optimization
4. ....
> 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
> Reporter: Jing Zhang
> Priority: Minor
>
> 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/sortmerge join strategy in
> sql hint
> 3. take parquet metadata into consideration in optimization
> 4. ....
> Please note, the improvements are not limited to batch sql. Maybe streaming
> sql job could also benefits from some improvements in this JIRA.
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