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Posted to github@arrow.apache.org by "Jefffrey (via GitHub)" <gi...@apache.org> on 2026/07/29 10:26:08 UTC

[I] json: reading nulls into listview/runarray values when declared as not nullable should error [arrow-rs]

Jefffrey opened a new issue, #10476:
URL: https://github.com/apache/arrow-rs/issues/10476

   ### Describe the bug
   
   see these tests
   
   ```rust
       #[test]
       fn test_list_view_child_not_nullable() {
           let field = Arc::new(Field::new("item", DataType::Int32, false));
           let data_type = DataType::ListView(field);
           let schema = Arc::new(Schema::new(vec![Field::new("a", data_type, true)]));
   
           let json = r#"
           {"a": [1, 2, 3]}
           {"a": [4, null]}
           {"a": null}
           {"a": [6]}
           {"a": []}
           "#;
   
           let _ = do_read(json, 1024, false, false, schema);
       }
   
       #[test]
       fn test_run_end_child_not_nullable() {
           let run_end = Arc::new(Field::new("run_end", DataType::Int16, false));
           let value = Arc::new(Field::new("value", DataType::Int32, false));
           let data_type = DataType::RunEndEncoded(run_end, value);
           let schema = Arc::new(Schema::new(vec![Field::new("a", data_type, true)]));
   
           let json = r#"
           {"a": 1}
           {"a": 1}
           {"a": null}
           {"a": 2}
           "#;
   
           let _ = do_read(json, 1024, false, false, schema);
       }
   ```
   
   they should both fail since we are reading nulls into their child arrays, however they are currently succeeding
   
   similar to https://github.com/apache/arrow-rs/issues/6391
   
   ### To Reproduce
   
   _No response_
   
   ### Expected behavior
   
   _No response_
   
   ### Additional context
   
   _No response_


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Re: [I] json: reading nulls into listviewvalues when declared as not nullable should error [arrow-rs]

Posted by "Jefffrey (via GitHub)" <gi...@apache.org>.
Jefffrey closed issue #10476: json: reading nulls into listviewvalues when declared as not nullable should error
URL: https://github.com/apache/arrow-rs/issues/10476


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Re: [I] json: reading nulls into listview/runarray values when declared as not nullable should error [arrow-rs]

Posted by "Jefffrey (via GitHub)" <gi...@apache.org>.
Jefffrey commented on issue #10476:
URL: https://github.com/apache/arrow-rs/issues/10476#issuecomment-5124535118

   - see https://github.com/apache/arrow-rs/issues/10478 for the runarray bug


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