[SPARK-48747] Add code point iterator to UTF8String

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Component/s: SQL
• Assignee: Uroš Bojanić
• Reporter: Uroš Bojanić
• Created: 28/Jun/24 06:54
• Updated: 01/Jul/24 14:52
• Resolved: 01/Jul/24 14:52

Description

Add code point iteration capabilities to the UTF8String class, which we need to enable collation support for some expressions under UTF8_LCASE collation.

Issue Links

• links to: [Github] Pull Request #47123 (uros-db)