[PR] [Hotfix][ams] Fix ResourceMapper.selectResourcesByGroup result mapping [amoro]

["lintingbin (via GitHub)" <gi...@apache.org>]

lintingbin opened a new pull request, #4194:
URL: https://github.com/apache/amoro/pull/4194

   ## What changes were proposed in this pull request?
   
   Fix the `@Result` annotations on `ResourceMapper.selectResourcesByGroup` so that the property names actually match the fields on `Resource`:
   
   | Column | Old `property` | Correct `property` |
   | --- | --- | --- |
   | `group_name` | `group` | `groupName` |
   | `container_name` | `container` | `containerName` |
   | `total_memory` | `totalMemory` | `memoryMb` |
   
   Also drop the `start_time` column from the `SELECT` list and remove its `@Result` entry. `Resource` has no `startTime` field, so the mapping was silently discarded — keeping the column in the projection added no value.
   
   ## Why are the changes needed?
   
   These mapping names have never matched the target class. Currently `DefaultOptimizerManager.listResourcesByGroup` is the only path that calls this mapper, and it has no caller on `master`, so the bug was latent. Any future caller (e.g. the auto-restart optimizer feature under development) that starts using this method would get back `Resource` instances with `null`/`0` values in `groupName`, `containerName`, and `memoryMb`. Fixing it as a standalone change keeps the diff minimal and makes it safe to cherry-pick.
   
   ## Does this PR introduce any user-facing change?
   
   No.
   
   ## How was this patch tested?
   
   - Verified no current caller of `selectResourcesByGroup` / `listResourcesByGroup` exists on master besides the declaration itself, so the change cannot regress existing behavior.
   - `mvn spotless:apply` passes.


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Re: [PR] [Hotfix][ams] Fix ResourceMapper.selectResourcesByGroup result mapping [amoro]

["zhoujinsong (via GitHub)" <gi...@apache.org>]

zhoujinsong merged PR #4194:
URL: https://github.com/apache/amoro/pull/4194


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