[SPARK-49959] Fix ColumnarArray.copy() to read nulls from the correct offset

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0, 3.5.3
• Fix Version/s: 4.0.0, 3.4.4, 3.5.4
• Component/s: Spark Core, SQL
• Labels: pull-request-available
• Assignee: Chenhao Li
• Reporter: Chenhao Li
• Created: 14/Oct/24 16:16
• Updated: 15/Oct/24 18:22
• Resolved: 15/Oct/24 18:22

Description

ColumnarArray represents an array containing elements from data[offset] to data[offset + length). When copying the array, the null flag should also be read starting from offset rather than 0.

Issue Links

• links to: GitHub Pull Request #48458