markhildreth edited a comment on issue #6972:
URL: https://github.com/apache/arrow/pull/6972#issuecomment-618501806


   @andygrove Thanks for the feedback. I have updated the PR with a less leaky 
API. I also tweaked the parquet test to workaround the new type inference 
changes.
   
   @nevi-me True for a singular batch, but it's possible to create multiple 
batches from different sources. For example
   
   ```
   let schema1 = ...
   let csv1 = ...
   let batch1 = ...
   
   let schema2 = ... // different schema
   let csv2 = ...
   let batch2 = ...
   
   print_batches(&[batch1, batch2]);
   ```
   
   As I said, this is probably not something to worry about too much right now, 
but I'll probably add an issue for later to revisit if that's alright. 
Interestingly, this code wouldn't even necessarily crash; you would just get an 
odd-looking table:
   
   ```
   +---------------------------------------+-----------+-----------+-------+
   | city                                  | lat       | lng       |       |
   +---------------------------------------+-----------+-----------+-------+
   | Elgin, Scotland, the UK               | 57.653484 | -3.335724 |       |
   | Stoke-on-Trent, Staffordshire, the UK | 53.002666 | -2.179404 |       |
   | Solihull, Birmingham, UK              | 52.412811 | -1.778197 |       |
   | Cardiff, Cardiff county, UK           | 51.481583 | -3.17909  |       |
   | 1                                     | 1.1       | 1.11      | true  |
   | 2                                     | 2.2       | 2.22      | true  |
   | 3                                     | 0         | 3.33      | true  |
   | 4                                     | 4.4       |           | false |
   | 5                                     | 6.6       |           | false |
   +---------------------------------------+-----------+-----------+-------+
   
   ```


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