Gabriel39 opened a new pull request, #64480:
URL: https://github.com/apache/doris/pull/64480
### What problem does this PR solve?
Localize slot-rooted struct element predicates through ColumnMapping so
renamed nested fields rewrite both selector names and projected file child
return types. Keep computed complex parents and evolved MAP_KEYS-style filters
at the table layer instead of generating unsafe file-local casts.
Rebuild complex scan projections and rematerialize struct children in
table type order, add debug-only block sanity checks with contextual errors,
preserve function-call clone state, and handle nullable Iceberg delete columns.
Move ColumnMapper coverage into column_mapper_test and add tests for
complex child projection, nested predicate projection, map/array fallback, and
file-local conjunct localization boundaries.
### 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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