hubgeter opened a new pull request, #69382:
URL: https://github.com/apache/doris/pull/69382
### What problem does this PR solve?
Issue Number: N/A
Problem Summary:
Iceberg scan carriers could use inconsistent top-level name casing or schema
generations, especially for full-schema, Top-N, and snapshot-pinned partition
scans. Build all carriers from one authoritative scan schema and resolve
partition columns by Iceberg field id.
### Release note
Fix mixed-case and time-travel Iceberg reads by keeping scan-schema carrier
names consistent.
### Check List (For Author)
- Test
- [ ] Regression test
- [x] 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
Unit tests: Iceberg connector suite passed (1478 tests, 0 failures, 1
skipped).
Manual test: verified mixed-case ORC, Top-N, pinned snapshot partition
rename/filter, and count pushdown with Spark, Iceberg REST, and Doris.
- Behavior changed:
- [ ] No.
- [x] 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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