[IMPALA-10689] Implement ds_cpc_union_f() function

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 4.1.0
• Component/s: Backend, Frontend
• Epic Link: DataSketches CPC support
• Epic Color: ghx-label-3
• Assignee: Fucun Chu
• Reporter: Fucun Chu
• Created: 30/Apr/21 08:49
• Updated: 26/Jun/21 10:27
• Resolved: 26/Jun/21 10:27

Description

ds_cpc_union_f() receives two strings that are serialized Apache DataSketches CPC sketches. Union two sketches and returns the resulting sketch of union.