nicolazar opened a new pull request, #3636:
URL: https://github.com/apache/fluss/pull/3636
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### Purpose
This PR adds nested types and per-node nullability to the Elixir bindings,
in both schema definitions and row values.
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Linked issue: close #xxx
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### Brief change log
- DataType gains recursive Array/Map/Row variants with recursive converters.
- Nullability uses an additive {:not_null, dt} wrapper (types nullable by
default, composable at any depth). The read path now preserves the flag, so
primary-key columns read back as {:not_null, ...}.
- Row value shapes: array -> list; map -> %{k => v}; row -> map keyed by
field-name atom.
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they address the issue -->
### Tests
New unit tests (schema builder) and integration round-trips (schema and
values); updated existing primary-key read assertions.
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### API and Format
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### Documentation
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