[ARROW-1882] [C++] Reintroduce DictionaryBuilder

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.8.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17875
• Assignee: Uwe Korn
• Reporter: Uwe Korn
• Created: 04/Dec/17 09:52
• Updated: 11/Jan/23 07:17
• Resolved: 06/Dec/17 03:02

Description

We need the DictionaryBuilder to incrementally build Arrow Arrays of DictionaryType. The kernels only support en-bloc conversions of Arrays which yields a higher memory usage.

Issue Links

• links to: GitHub Pull Request #1388