Ben Chambers created ARROW-11847:
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Summary: Confusion: `null_buffer` contains `1` to indicate `valid`
Key: ARROW-11847
URL: https://issues.apache.org/jira/browse/ARROW-11847
Project: Apache Arrow
Issue Type: Task
Components: Rust
Reporter: Ben Chambers
Filing this because it has bitten me once or twice. The name `null_buffer`
makes me *think* that I'm getting a buffer that indicates (when true) that the
corresponding value is null. But in actuality, we get back a buffer that
indicates(when true) that the corresponding value is valid.
I'm wondering if there is a reason for this discrepancy or if it could make
sense to rename `null_buffer` to `valid_buffer`?
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