Yubin Li created FLINK-34918:
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Summary: Introduce the support of catalog for comments
Key: FLINK-34918
URL: https://issues.apache.org/jira/browse/FLINK-34918
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Affects Versions: 1.20.0
Reporter: Yubin Li
We propose to introduce `getComment()` method in `CatalogDescriptor`, and the
reasons are as follows.
1. For the sake of design consistency, follow the design of FLIP-295 [1] which
introduced `CatalogStore` component, `CatalogDescriptor` includes names and
attributes, both of which are used to describe the catalog, and `comment` can
be added smoothly.
2. Extending the existing class rather than add new method to the existing
interface, Especially, the `Catalog` interface, as a core interface, is used by
a series of important components such as `CatalogFactory`, `CatalogManager` and
`FactoryUtil`, and is implemented by a large number of connectors such as JDBC,
Paimon, and Hive. Adding methods to it will greatly increase the implementation
complexity, and more importantly, increase the cost of iteration, maintenance,
and verification.
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