[GitHub] [arrow-rs] tustvold commented on issue #3875: Is it possible to write a map?

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

tustvold commented on issue #3875:
URL: https://github.com/apache/arrow-rs/issues/3875#issuecomment-1472313326

   > I would appreciate any examples 
   
   There is an example using MapArrayBuilder - https://github.com/apache/arrow-rs/blob/master/parquet/src/arrow/array_reader/map_array.rs#L146
   
   And an example using the JSON reader - https://github.com/apache/arrow-rs/blob/master/arrow-json/src/raw/mod.rs#L607
   
   The documentation could definitely be improved for handling this particular type
   
   > Take not supported for data type 
   
   This looks like a failure in `model::tests::zip_batches`, that is calling the `take` kernel which doesn't currently support MapArray, not anything to do with parsing the MapArray itself.
   


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