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Does Batch Mode only apply to Agg Functions on ColumnStore Index

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Azure SQL Database - Standard Edition (S3 Service Tier) Why does Batch Mode only come into effect when using Aggregate Functions? DROP TABLE IF EXISTS dbo.TransCS CREATE TABLE dbo.TransCS ( Col1 INT ,Col2 AS Col1*2 ) CREATE CLUSTERED COLUMNSTORE INDEX CS_TransCS on dbo.TransCS; WITH L0 AS(SELECT 1 AS c UNION ALL SELECT 1), L1 AS(SELECT 1 AS c FROM L0 AS A CROSS JOIN L0 AS B), L2 AS(SELECT 1 AS c FROM L1 AS A CROSS JOIN L1 AS B), L3 AS(SELECT 1 AS c FROM L2 AS A CROSS JOIN L2 AS B), L4 AS(SELECT 1 AS c FROM L3 AS A CROSS JOIN L3 AS B), L5 AS(SELECT 1 AS c FROM L4 AS A CROSS JOIN L4 AS B), Nums AS(SELECT ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) AS n FROM L5) INSERT INTO dbo.TransCS (Col1) SELECT TOP (1000000) n FROM Nums ORDER BY n; Insert 1 Million rows Row Processing SELECT * FROM dbo.TransCS Execution Plan Batch Processing SELECT Col1, Col2, SUM(Col2)OVER () FROM dbo.TransCS Execution Plan Is there a way to utilise the performance benefits without using Agg functions? Documentation on this is thin.
Asked by Geezer (513 rep)
Feb 19, 2019, 10:11 AM
Last activity: Feb 20, 2019, 01:50 PM