[BEAM-9954] Beam ZetaSQL supports pure SQL user-defined aggregation functions

• Type: Task
• Status: Open
• Priority: P3
• Resolution: Unresolved
• Component/s: dsl-sql-zetasql
• Assignee: Unassigned
• Reporter: Rui Wang
• Created: 11/May/20 22:18
• Updated: 04/Jun/22 15:41

Description

One naive example is

CREATE AGGREGATE FUNCTION fun (a INT64, b INT64) AS (SUM(a)/AVG(b));