[ARROW-9996] [C++] Dictionary is unset when calling DictionaryArray.GetScalar for null values

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 2.0.0
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/26021
• Assignee: Krisztian Szucs
• Reporter: Krisztian Szucs
• Created: 14/Sep/20 15:33
• Updated: 11/Jan/23 08:10
• Resolved: 28/Sep/20 09:22

Description

Which fails the MakeArrayFromScalar(arr.GetScalar()) roundtrip.

Issue Links

• is fixed by: ARROW-9992 [C++][Python] Refactor python to arrow conversions based on a reusable conversion API