apache / apache/gravitino

[Improvement] Provide composite catalog for various catalog

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#4,788 8 comments 1 reaction 0 assignees View on GitHub
improvement
Dominant language
Java
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Description

### What would you like to be improved?

Currently, we maintain separate metadata management systems for Iceberg, Hive, and Paimon, each with its unique cataloging approach. While this separation allows for specialized optimizations, it also leads to increased complexity in the management and usage of metadata across different systems.

Considering for a unified metadata management system, I propose the development of a new component, tentatively named TableCatalog, which can also avoid the issue of data inconsistency.

### How should we improve?

_No response_

Contributor guide

Open the contributing guide

Research direction

The issue names separate metadata systems for Iceberg, Hive, and Paimon but no files, tests, or entry points. Begin by examining how those cataloging systems are currently managed and clarify the TableCatalog scope, consistency requirements, and acceptance criteria before implementation; the issue does not define what done looks like.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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