[SPARK-28052] ArrayExists should follow the three-valued boolean logic.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.3
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: Takuya Ueshin
• Reporter: Takuya Ueshin
• Created: 14/Jun/19 07:05
• Updated: 15/Jun/19 23:01
• Resolved: 15/Jun/19 17:48

Description

Currently ArrayExists always returns boolean values (if the arguments are not null), but it should follow the three-valued boolean logic:

• true if the predicate holds at least one true
• otherwise, null if the predicate holds null
• otherwise, false

Issue Links

• links to: GitHub Pull Request #24873