[ARROW-11063] [Rust] Validate null counts when building arrays

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/26977
• Assignee: Neville Dipale
• Reporter: Neville Dipale
• Created: 29/Dec/20 10:27
• Updated: 11/Jan/23 08:17
• Resolved: 29/Dec/20 22:06

Description

ArrayDataBuilder allows the user to specify a null count, alternatively calculating it if it is not set.

The problem is that the user-specified null count is never validated against the actual count of the buffer.

I suggest removing the ability to specify a null-count, and instead always calculating it.

Issue Links

• links to: GitHub Pull Request #9041