wjones127 commented on code in PR #3276:
URL: https://github.com/apache/arrow-rs/pull/3276#discussion_r1040091201
##########
arrow-pyarrow-integration-testing/tests/test_sql.py:
##########
@@ -193,6 +200,34 @@ def test_time32_python():
del b
del expected
+
+def test_empty_array_python():
+ """
+ Python -> Rust -> Python
+ """
+ a = pa.array([], pa.int32())
Review Comment:
For the null failure, here is the relevant backtrace:
```
thread '<unnamed>' panicked at 'assertion failed: index < array.n_buffers as
usize', /Users/willjones/Documents/arrow-rs/arrow/src/ffi.rs:586:5
stack backtrace:
0: rust_begin_unwind
at
/rustc/4b91a6ea7258a947e59c6522cd5898e7c0a6a88f/library/std/src/panicking.rs:584:5
1: core::panicking::panic_fmt
at
/rustc/4b91a6ea7258a947e59c6522cd5898e7c0a6a88f/library/core/src/panicking.rs:142:14
2: core::panicking::panic
at
/rustc/4b91a6ea7258a947e59c6522cd5898e7c0a6a88f/library/core/src/panicking.rs:48:5
3: arrow::ffi::create_buffer
at /Users/willjones/Documents/arrow-rs/arrow/src/ffi.rs:586:5
4: arrow::ffi::ArrowArrayRef::null_bit_buffer
at /Users/willjones/Documents/arrow-rs/arrow/src/ffi.rs:736:18
5: arrow::ffi::ArrowArrayRef::to_data
at /Users/willjones/Documents/arrow-rs/arrow/src/ffi.rs:620:31
6: arrow::array::ffi::<impl
core::convert::TryFrom<arrow::ffi::ArrowArray> for
arrow_data::data::ArrayData>::try_from
at
/Users/willjones/Documents/arrow-rs/arrow/src/array/ffi.rs:34:9
7: <arrow_data::data::ArrayData as
arrow::pyarrow::PyArrowConvert>::from_pyarrow
at
/Users/willjones/Documents/arrow-rs/arrow/src/pyarrow.rs:132:20
```
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