[SPARK-40494] Optimize the performance of `keys.zipWithIndex.toMap` code pattern

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: MLlib, Spark Core, SQL
• Assignee: Yang Jie
• Reporter: Yang Jie
• Created: 20/Sep/22 05:26
• Updated: 21/Sep/22 08:36
• Resolved: 21/Sep/22 08:36

Description

Similar as SPARK-40175, can use  `while loop manually style` to optimize the performance of `keys.zipWithIndex.toMap` code pattern in Spark.

Issue Links

• links to: [Github] Pull Request #37940 (LuciferYang)