[GitHub] [arrow-rs] tustvold opened a new issue, #1591: [Safety] UnionBuilder Doesn't Check Types

[GitBox <gi...@apache.org>]

tustvold opened a new issue, #1591:
URL: https://github.com/apache/arrow-rs/issues/1591

   **Describe the bug**
   
   The following code passes, despite transmuting memory in undefined ways
   
   ```
   let mut builder = UnionBuilder::new_sparse(2);
   builder.append::<Float32Type>("a", 1.0).unwrap();
   builder.append::<Int32Type>("a", 1).unwrap();
   
   let array = builder.build().unwrap();
   ```
   
   **To Reproduce**
   
   Test above
   
   **Expected behavior**
   
   `UnionBuilder::append` should error if the types don't match
   
   **Additional context**
   Add any other context about the problem here.
   


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[GitHub] [arrow-rs] alamb closed issue #1591: [Safety] UnionBuilder Doesn't Check Types

[GitBox <gi...@apache.org>]

alamb closed issue #1591: [Safety] UnionBuilder Doesn't Check Types
URL: https://github.com/apache/arrow-rs/issues/1591


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