David Li created ARROW-13437:
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Summary: [C++] Slice of FixedSizeList fails ValidateFull
Key: ARROW-13437
URL: https://issues.apache.org/jira/browse/ARROW-13437
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 4.0.1
Reporter: David Li
Assignee: David Li
{code:python}
>>> arr = pa.array([["a", "b"], None, ["c", "d"]], pa.list_(pa.string(), 2))
>>> arr.validate(full=True)
>>> arr.slice(0, 1).validate(full=True)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "pyarrow/array.pxi", line 1219, in pyarrow.lib.Array.validate
File "pyarrow/error.pxi", line 97, in pyarrow.lib.check_status
pyarrow.lib.ArrowInvalid: Values length (6) is not equal to the length (1)
multiplied by the value size (2)
{code}
Came up while looking at ARROW-13222. I'm not sure of the check here is
necessarily valid, given slicing; it should perhaps only check that values
length >= length * value_size, not that they're exactly equal.
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