Re: [PR] feat: add support for fixed list wildcard in type signature [arrow-datafusion]

Fri, 23 Feb 2024 22:14:13 -0800 


jayzhan211 commented on PR #9312:
URL: 
https://github.com/apache/arrow-datafusion/pull/9312#issuecomment-1962271571

   If I understand correctly, it should pass the test like
   
   ```rust
           let inner = Arc::new(Field::new("item", DataType::Int32, false));
           let current_types = vec![
               DataType::FixedSizeList(inner.clone(), 2), // able to coerce for 
any size
           ];
           let signature = Signature::exact(vec![
               DataType::FixedSizeList(inner.clone(), FIXED_SIZE_LIST_WILDCARD),
           ], Volatility::Stable);
           let coerced_data_types = data_types(&current_types, 
&signature).unwrap();
           assert_eq!(coerced_data_types, current_types);
   ```


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