[ARROW-274] Make the MapVector nullable

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.1.0
• Component/s: Java
• External issue URL: https://github.com/apache/arrow/issues/15631
• Assignee: Julien Le Dem
• Reporter: Julien Le Dem
• Created: 25/Aug/16 23:38
• Updated: 11/Jan/23 07:07
• Resolved: 06/Sep/16 18:47

Description

Currently the MapVector used to store Structs (aka Tuples) does not have a validity inner vector. As such struct types can not be null.
Based on the use of The MapVector I'm thinking of creating a NullableMapVector for this purpose that would encapsulate the MapVector