[I] [elixir] Add support for complex types - array, map & row [fluss-rust]

["nicolazar (via GitHub)" <gi...@apache.org>]

nicolazar opened a new issue, #642:
URL: https://github.com/apache/fluss-rust/issues/642

   ### Search before asking
   
   - [x] I searched in the [issues](https://github.com/apache/fluss-rust/issues) and found nothing similar.
   
   
   ### Description
   
   The Elixir binding's data-type representation is flat (scalars + decimal/char/binary), with no support for nested `Array` / `Map` / `Row` types. Core already supports them (recursive `DataType`, nested row format; Python added this in #601).
   
   Two layers to cover:
   - **Schema representation:** add recursive variants to the Nif `DataType` enum and nest the Elixir type (`{:array, dt}`, `{:map, k, v}`, `{:row, [{name, dt}]}`); make `to_fluss_type`/`from_fluss_type` recursive.
   - **Data plane:** extend the row converters (`field_to_term`/`set_field_from_term`)
     to read/write nested values.
   
   Can land incrementally (schema first, then read, then write).
   
   ### Willingness to contribute
   
   - [x] I'm willing to submit a PR!


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Re: [I] [elixir] Add support for complex types - array, map & row [fluss-rust]

["fresh-borzoni (via GitHub)" <gi...@apache.org>]

fresh-borzoni closed issue #642: [elixir] Add support for complex types - array, map & row
URL: https://github.com/apache/fluss-rust/issues/642


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