Jark Wu created FLINK-12846:
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Summary: Carry primary key and unique key information in
TableSchema
Key: FLINK-12846
URL: https://issues.apache.org/jira/browse/FLINK-12846
Project: Flink
Issue Type: New Feature
Components: Table SQL / API
Reporter: Jark Wu
Assignee: Jark Wu
Fix For: 1.9.0
The primary key and unique key is a standard meta information in SQL. And they
are important information for optimization, for example, AggregateRemove,
AggregateReduceGrouping and state layout optimization for TopN and Join.
So in this issue, we want to extend {{TableSchema}} to carry more information
about primary key and unique keys. So that the TableSource can declare this
meta information.
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