[SPARK-49589] Cache AgnosticEncoders where possible

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.0.0
• Component/s: Connect, SQL
• Epic Link: Unified SQL Scala Interface
• Assignee: Unassigned
• Reporter: Herman van Hövell
• Created: 10/Sep/24 17:56
• Updated: 10/Sep/24 17:56

Description

Unlike ExpressionEncoders AgnosticEncoders can be cached. Inferring an AgnosticEncoder is expensive so it is better to cache them if possible.