[SPARK-28782] explode() fails on aggregate expressions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: Weichen Xu
• Reporter: Weichen Xu
• Created: 20/Aug/19 12:34
• Updated: 03/Mar/20 20:03
• Resolved: 05/Sep/19 08:23

Description

function explode() fails on aggregate expressions

We should support sql like:

spark.range(5).select( 
  explode(array(max($"id"), min($"id")))
)

Issue Links

• is related to: SPARK-30997 An analysis failure in generators with aggregate functions
• links to: GitHub Pull Request #25512