[I] [Bug] ARRAY row types fail binary serialization with "type VECTOR not support" [paimon]

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

LuciferYang opened a new issue, #9772:
URL: https://github.com/apache/paimon/issues/9772

   ### Bug description
   
   `ARRAY<VECTOR(n)>` is accepted by schema validation and readable via `ColumnarArray.getVector`, but the binary data path rejects it:
   
   - `InternalArray.createElementGetter` has no `VECTOR` case, and `InternalArraySerializer` builds its element getter eagerly in the constructor, so building a serializer over such a row type throws `IllegalArgumentException("type VECTOR not support in ...")`.
   - `BinaryArray.calculateFixLengthPartSize` and `BinaryRow`-style `getDataClass` (`InternalRow.getDataClass`) also lack VECTOR, so even past construction, serializing/copying such an array throws `Unsupported type: VECTOR<...>`.
   - `BinaryArray.getVector` is an unconditional throw.
   
   Concrete failing flow: a primary-key table with an `ARRAY<VECTOR(3)>` column — the local merge (`SortBufferLocalMerger` → `InternalRowSerializer.toBinaryRow`) serializes the row and crashes.
   
   ### Expected behavior
   
   Nested VECTOR should flow through the same binary accessors as ARRAY/MAP/ROW (the row-level `getVector` and `BinaryWriter.writeVector`/`InternalVectorSerializer` already support it).


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Re: [I] [Bug] ARRAY row types fail binary serialization with "type VECTOR not support" [paimon]

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

JingsongLi closed issue #9772: [Bug] ARRAY<VECTOR> row types fail binary serialization with "type VECTOR not support"
URL: https://github.com/apache/paimon/issues/9772


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