[SPARK-27221] Improve the assert error message in TreeNode.parseToJson

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: Shixiong Zhu
• Reporter: Shixiong Zhu
• Created: 20/Mar/19 16:57
• Updated: 12/Dec/22 18:10
• Resolved: 21/Mar/19 02:15

Description

When TreeNode.parseToJson may throw an assert error without any error message when a TreeNode is not implemented properly, and it's hard to find the bad TreeNode implementation.

It's better to improve the error message to indicate the type of TreeNode.

Issue Links

• links to: GitHub Pull Request #24159