`PrimitiveVector` should as a logical data type about greptimedb HOT 5 CLOSED

We may also need to move the serialization of Vector to DataType, so we could serialize the elements based on vector's logical type.

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I suggest changing the parameter Primitive of PrimitiveVector to LogicalType (or another naming). With a type parameter PhysicalType. Just like this in arrow - ArrowPrimitiveType and type parameter Native.

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pub struct PrimitiveVector<T: LogicalPrimitiveType> {
    array: PrimitiveArray<T::ArrowPrimitive>,
}

This is implemented now? @v0y4g3r @waynexia

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This is related to the arrow2 crate, I guess we can close this issue now.

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No longer relevant.

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