DROP DATABASE IF EXISTS `mcol 3785`; DROP DATABASE IF EXISTS `mcol 3785 2`; CREATE DATABASE `mcol 3785`; CREATE DATABASE `mcol 3785 2`; USE `mcol 3785`; CREATE TABLE src (c0 INT, c1 INT); INSERT INTO src VALUES (1,1),(1,1),(1,1),(2,2),(2,2),(2,2),(3,3),(3,3),(3,3); CREATE TABLE `target table` ENGINE=ColumnStore AS SELECT c0, COUNT(c0) FROM `mcol 3785`.src GROUP BY c0; SELECT * FROM `target table`; c0 COUNT(c0) 1 3 2 3 3 3 CREATE TABLE `mcol 3785 2`.`target table` ENGINE=ColumnStore AS SELECT c0, COUNT(c0) FROM `mcol 3785`.src GROUP BY c0; SELECT * FROM `mcol 3785 2`.`target table`; c0 COUNT(c0) 1 3 2 3 3 3 DROP DATABASE `mcol 3785`; DROP DATABASE `mcol 3785 2`;