[Feature] Add remote maintainer framework for Paimon tables #4068
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This commit introduces a framework for executing Paimon table maintenance operations (snapshot expiration, orphan file cleanup) remotely on Spark optimizers, following the existing Optimizer pattern. Changes: - Add MaintainerInput/Output interfaces and base implementations - Add MaintainerExecutor/Factory interfaces for remote execution - Create amoro-optimizer-paimon-spark module with SparkMaintainerExecutor - Implement PaimonSnapshotExpire* components for snapshot expiration - Add placeholder SparkOptimizer for future Paimon optimizing support Co-Authored-By: Claude (glm-4.7) <[email protected]>
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This PR introduces a framework for executing Paimon table maintenance operations (snapshot expiration, orphan file cleanup) remotely on Spark optimizers.
Changes:
Key Design: