weibangpeng opened a new pull request, #8245:
URL: https://github.com/apache/paimon/pull/8245
## Summary
- Added ARRAY, MAP, ROW type serialization and deserialization support to
`IcebergConversions`
- Each element/field within complex types is prefixed with a 4-byte LE
length to handle variable-length children correctly
- Null elements are represented with length -1
## Test plan
- Added `IcebergConversionsComplexTypeTest` with 17 tests covering:
- ARRAY: primitive types, strings, empty arrays, null elements, nested
arrays, decimals, timestamps
- MAP: int→string, empty maps, null values, array values
- ROW: mixed field types, null fields, nested rows, fields with array and
map
- Mixed nesting: array of rows, map with array values, row with array and
map fields
- All 67 existing IcebergConversions tests continue to pass (no regressions)
- IcebergCompatibilityTest (19 tests) continues to pass
Closes #3788
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