[I] Implement arrow_json encoder for Decimal128 & Decimal256 DataTypes [arrow-rs]

["phillipleblanc (via GitHub)" <gi...@apache.org>]

phillipleblanc opened a new issue, #6605:
URL: https://github.com/apache/arrow-rs/issues/6605

   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   
   I would like to be able to use the arrow_json::ArrayWriter to write Arrow batches that contain Decimal128 & Decimal256 data.
   
   **Describe the solution you'd like**
   
   Running this code does not produce an error:
   
   ```rust
       #[test]
       fn test_decimal128_encoder() {
           let array = Decimal128Array::from_iter_values([1234, 5678, 9012])
               .with_precision_and_scale(10, 2)
               .unwrap();
           let field = Arc::new(Field::new("decimal", array.data_type().clone(), true));
           let schema = Schema::new(vec![field]);
           let batch = RecordBatch::try_new(Arc::new(schema), vec![Arc::new(array)]).unwrap();
   
           let mut buf = Vec::new();
           {
               let mut writer = LineDelimitedWriter::new(&mut buf);
               writer.write_batches(&[&batch]).unwrap();
           }
   
           assert_json_eq(
               &buf,
               r#"{"decimal":12.34}
   {"decimal":56.78}
   {"decimal":90.12}
   "#,
           );
       }
   ```
   
   **Describe alternatives you've considered**
   
   N/A
   
   **Additional context**
   
   N/A
   


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Re: [I] Implement arrow_json encoder for Decimal128 & Decimal256 DataTypes [arrow-rs]

["tustvold (via GitHub)" <gi...@apache.org>]

tustvold closed issue #6605: Implement arrow_json encoder for Decimal128 & Decimal256 DataTypes
URL: https://github.com/apache/arrow-rs/issues/6605


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Re: [I] Implement arrow_json encoder for Decimal128 & Decimal256 DataTypes [arrow-rs]

["alamb (via GitHub)" <gi...@apache.org>]

alamb commented on issue #6605:
URL: https://github.com/apache/arrow-rs/issues/6605#issuecomment-2427364877

   `label_issue.py` automatically added labels {'arrow'} from #6606


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