atwam commented on issue #5354:
URL: https://github.com/apache/arrow-rs/issues/5354#issuecomment-1919154761
Interestingly, changing the tests (which I've done locally) raise another
error:
in `test_sql.py:test_tensor_array`, schemas are not equal even after my
fixes:
```
> print("Orig schema:", batch.schema)
Orig schema: tensor: extension<arrow.fixed_shape_tensor[value_type=float,
shape=[2,3]]>
-- schema metadata --
key1: 'value1'
> print("New schema:", b.schema)
New schema: tensor: extension<arrow.fixed_shape_tensor[value_type=float,
shape=[2,3]]>
-- field metadata --
ARROW:extension:name: 'arrow.fixed_shape_tensor'
ARROW:extension:metadata: '{"shape":[2,3]}'
-- schema metadata --
key1: 'value1'
```
It looks like the round-trip adds two fields metadata on the `tensor` field,
that were not there in the original `pa.record_batch`
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