sundapeng opened a new pull request, #10342:
URL: https://github.com/apache/paimon/pull/10342
### Purpose
`FileType.isMutable` decides which files `CachingFileIO` (the
`local-cache.*` block cache) never caches: a file rewritten under a stable path
would keep being served with its old content. A few such files were missing:
- Temp files from `Path.createTempPath()` (`.{name}.{uuid}.tmp`) were judged
by the unwrapped name, so a temp manifest or snapshot counted as immutable.
They are now always mutable: they are renamed away once written and never read
back under their own path.
- The Iceberg-compatible `version-hint.text` and `retire-pending` are
rewritten in place by `IcebergCommitCallback`, so they are now mutable.
- Manifest sidecars (`*.avro.sidecar`) classify as `META` even when the name
does not contain `manifest`: the name comes from `ManifestFileMeta#extraFiles`,
and explicit rewrites may use any name.
- `local-cache.whitelist` accepts `*` for all file types.
### Tests
`FileTypeTest`: 7 new cases (temp files, Iceberg metadata, `_SUCCESS` under
tags, changelog metadata, manifest sidecars, whitelist parsing with `*`); 18
passed.
### API and Format
No.
### Documentation
The `local-cache.whitelist` description, including the generated catalog
configuration, mentions `*`.
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