[ARROW-13242] [C++] Improve decimal random generation

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28927
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 01/Jul/21 19:26
• Updated: 11/Jan/23 08:31
• Resolved: 21/Jul/21 17:22

Description

Right now, random Decimal128 generation in testing/random.cc does not support precisions greater than 18. Also, Decimal256 generation is not implemented.

Issue Links

• links to: GitHub Pull Request #10643