spebern opened a new issue, #4069:
URL: https://github.com/apache/arrow-rs/issues/4069
**Which part is this question about**
`arrow-json`
**Describe your question**
This test fails in `arrow-json/src/raw/mod.rs`, because `1681319393` is
parsed via string conversion. Should it be possible to parse timestamps from
ints? I think it was possible in the old json decoder.
```rust
#[test]
fn test_serialize_timestamp() {
let json = vec![
json!({"timestamp": 1681319393}),
json!({"timestamp": "1970-01-01T00:00:00+02:00"}),
];
let schema = Schema::new(vec![Field::new(
"timestamp",
DataType::Timestamp(TimeUnit::Second, None),
true,
)]);
let mut decoder = RawReaderBuilder::new(Arc::new(schema))
.build_decoder()
.unwrap();
decoder.serialize(&json).unwrap();
let batch = decoder.flush().unwrap().unwrap();
assert_eq!(batch.num_rows(), 1);
assert_eq!(batch.num_columns(), 2);
let values = batch.column(0).as_primitive::<Int64Type>().values();
assert_eq!(values, &[1681319393, 1599572549]);
}
```
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