csun5285 opened a new pull request, #63153:
URL: https://github.com/apache/doris/pull/63153
The TypeInfo class hierarchy (TypeInfo / ScalarTypeInfo / ArrayTypeInfo /
MapTypeInfo / StructTypeInfo) only exposed two operations -- type() and size()
-- both fully derivable from FieldType. Storing a TypeInfoPtr alongside the
TabletColumn / Field that already carries the same information was redundant.
Replace TypeInfo* fields and parameters with FieldType throughout the
storage layer, and add a static field_type_size(FieldType) helper that maps
each type to sizeof(CppTypeTraits<FT>::CppType) so size lookups stay in sync
with the existing traits machinery.
Index writer's ARRAY peel-off now reads the inner element type from
TabletColumn::get_sub_column(0).type() instead of dynamic_cast'ing to
ArrayTypeInfo, which removes the only consumer of nested TypeInfo accessors.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
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- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
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- [ ] 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:
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