Jorge Leitão created ARROW-10448:
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Summary: [Rust] PrimitiveArray::new can create arrays not in spec
Key: ARROW-10448
URL: https://issues.apache.org/jira/browse/ARROW-10448
Project: Apache Arrow
Issue Type: Bug
Components: Rust
Affects Versions: 3.0.0
Reporter: Jorge Leitão
Assignee: Jorge Leitão
Currently, PrimitiveArray::new passed with `null_count != 0` creates an array
that does not follow the specification, as it is initialized with a {{None}}
null bitmap but a non-zero null_count.
This method also makes no attempt to check for the buffer's aligment, which
leads to UB.
Since a change in this method's signature requires a backward incompatible
change, and it is only used in tests, I propose that we just remove it: we have
good offers to create primitive arrays:
* from an {{ArrayData}},
* from a vector or vector of optionals
* from an iterator
which covers all major cases.
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