[GitHub] [arrow-rs] ritchie46 opened a new issue #334: Cast of utf8 types and list container types don't respect offset

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

ritchie46 opened a new issue #334:
URL: https://github.com/apache/arrow-rs/issues/334


   **Describe the bug**
   Casting between:
   
   * list <-> large-list
   * utf8 <-> large-utf8
   
   does not respect offset (and list cast even panics). 
   
   **To Reproduce**
   
   ```rust
       #[test]
       fn test_utf8_cast_offsets() {
           // test if offset of the array is taken into account during cast
           let str_array = StringArray::from(vec!["a", "b", "c"]);
           let str_array = str_array.slice(1, 2);
   
           let out = cast(&str_array, &DataType::LargeUtf8).unwrap();
   
           let large_str_array = out.as_any().downcast_ref::<LargeStringArray>().unwrap();
           let strs = large_str_array.into_iter().flatten().collect::<Vec<_>>();
           assert_eq!(strs, &["b", "c"])
       }
   
       #[test]
       fn test_list_cast_offsets() {
           // test if offset of the array is taken into account during cast
           let array1 = make_list_array().slice(1, 2);
           let array2 = Arc::new(make_list_array()) as ArrayRef;
   
           let dt = DataType::LargeList(Box::new(Field::new("item", DataType::Int32, true)));
           let out1 = cast(&array1, &dt).unwrap();
           let out2 = cast(&array2, &dt).unwrap();
   
           assert_eq!(&out1, &out2.slice(1, 2))
       }
   
   ```
   
   **Expected behavior**
   Casting with correct offset.
   
   
   


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[GitHub] [arrow-rs] ritchie46 commented on issue #334: Cast of utf8 types and list container types don't respect offset

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

ritchie46 commented on issue #334:
URL: https://github.com/apache/arrow-rs/issues/334#issuecomment-847744856


   This can be closed. Or do we leave this open for the active-release branches?


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[GitHub] [arrow-rs] nevi-me closed issue #334: Cast of utf8 types and list container types don't respect offset

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

nevi-me closed issue #334:
URL: https://github.com/apache/arrow-rs/issues/334


   


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[GitHub] [arrow-rs] nevi-me commented on issue #334: Cast of utf8 types and list container types don't respect offset

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

nevi-me commented on issue #334:
URL: https://github.com/apache/arrow-rs/issues/334#issuecomment-877794567


   Can be closed


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