[SPARK-27288] Pruning nested field in complex map key from object serializers

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: L. C. Hsieh
• Reporter: L. C. Hsieh
• Created: 27/Mar/19 01:12
• Updated: 27/Mar/19 21:15
• Resolved: 27/Mar/19 10:41

Description

In SPARK-26847, pruning nested field in complex map key was not supported, because some methods in schema pruning did't support it at that moment. Now as those methods support it, we can prune nested field in complex map key.

Issue Links

• links to: GitHub Pull Request #24220