Gabriel39 opened a new pull request, #66065:
URL: https://github.com/apache/doris/pull/66065
### What problem does this PR solve?
Issue Number: None
Related PR: None
Problem Summary:
The Paimon P0 regression suite did not distinguish the four primary-key
merge engines and did not verify that every unsupported Doris data-write shape
leaves both data and snapshots unchanged. This PR:
- adds Parquet and ORC coverage for deduplicate, partial-update,
aggregation, and first-row tables under automatic and forced-JNI reader routing;
- verifies dynamic-bucket cross-partition deduplication;
- covers rejected INSERT, INSERT SELECT, INSERT OVERWRITE, UPDATE, DELETE,
and MERGE statements with pre/post row and snapshot invariants;
- records the Paimon CTAS metadata-atomicity defect as an isolated opt-in
negative regression; and
- documents the Paimon/Iceberg read/write P0 coverage matrix and why no
additional Iceberg P0 case is needed for the currently supported surface.
### Release note
None
### Check List (For Author)
- Test
- [x] Regression test
- [ ] Unit Test
- [x] 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
Validation:
- Paimon merge-engine matrix and write-boundary suites: passed, 2/2.
- Existing Iceberg MERGE semantics suite: passed.
- Isolated Paimon CTAS negative suite: reproduced the expected
metadata-atomicity failure and cleaned up the target table.
- FE and BE build: passed.
- Behavior changed:
- [x] No.
- [ ] Yes.
- Does this need documentation?
- [x] No.
- [ ] Yes.
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label
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