hubgeter opened a new pull request, #65678:
URL: https://github.com/apache/doris/pull/65678
### What problem does this PR solve?
Related PR: #65135
Problem Summary:
Problem Summary: Iceberg position_deletes system table scans used FORMAT_JNI
at the scan level, so FileScanLocalState always selected FileScanner V1 before
it could inspect range-level formats. Use the source table
write.delete.format.default, falling back to its data file format, only as a
cached scan-level routing hint. Every range and delete descriptor still uses
the actual format recorded in Iceberg metadata, so historical Parquet, ORC, and
Puffin deletion-vector splits keep their physical reader. An Avro default can
be a routing hint, while actual Avro position delete files remain unsupported.
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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