[SPARK-18601] Simplify Create/Get complex expression pairs in optimizer

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Component/s: SQL
• Assignee: Eyal Farago
• Reporter: Herman van Hövell
• Created: 27/Nov/16 21:20
• Updated: 07/Feb/17 09:58
• Resolved: 07/Feb/17 09:58

Description

It often happens that a complex object (struct/map/array) is created only to get elements from it in an subsequent expression. We can add an optimizer rule for this.

Issue Links

• links to: [Github] Pull Request #16043 (eyalfa)