[CALCITE-5657] Add ARRAY_DISTINCT for Spark dialect

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.34.0
• Fix Version/s: 1.35.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Jacky Lau
• Reporter: Jacky Lau
• Created: 18/Apr/23 15:48
• Updated: 27/Jul/23 10:22
• Resolved: 17/May/23 02:23

Description

ARRAY_DISTINCT - Returns the input ARRAY with unique elements. If the array itself is null, the function will return null. Keeps ordering of elements.

For more details
https://spark.apache.org/docs/latest/sql-ref-functions-builtin.html

Issue Links

• links to: GitHub Pull Request #3161