[SPARK-35965] Add documentation for ORC nested column vectorized reader

• Type: Documentation
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.0
• Component/s: Documentation, SQL
• Assignee: Cheng Su
• Reporter: Cheng Su
• Created: 01/Jul/21 07:22
• Updated: 12/Dec/22 18:10
• Resolved: 01/Jul/21 10:01

Description

In https://issues.apache.org/jira/browse/SPARK-34862, we added support for ORC nested column vectorized reader, and it is disabled by default for now. So we would like to add the user-facing documentation for it, and user can opt-in to use it if they want.

Issue Links

• links to: [Github] Pull Request #33168 (c21)
• links to: [Github] Pull Request #33168 (c21)