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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/01/07 15:38:35 UTC

[GitHub] [arrow] ovr commented on pull request #9114: ARROW-11149: [Rust] DF Support List/LargeList in create_batch_empty

ovr commented on pull request #9114:
URL: https://github.com/apache/arrow/pull/9114#issuecomment-756192484


   @jorgecarleitao You are right, but I was thinking about modifying `make_empty_list_fn` macros to support  `FixedSizeListBuilder`, which is not `GenericListBuilder`.
   
   Something like:
   
   `make_empty_list_fn!(build_empty_fixed_size_list_array, FixedSizeListBuilder);`
   
   But I am having a problem with constructing it, `FixedSizeListBuilder` requires 2 arguments in `new` method instead of one like `GenericListBuilder`.
   
   `pub fn new(values_builder: T, length: i32) -> Self {`
   
   Do you have any solutions how is it possible to do by Marcos? And is it a good idea?
   
   Thanks!
   


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