# # Test Standard deviation functions # Author: Bharath, bharath.bokka@mariadb.com # -- source ../include/have_columnstore.inc --disable_warnings DROP DATABASE IF EXISTS mcs96_db; --enable_warnings CREATE DATABASE mcs96_db; USE mcs96_db; CREATE TABLE t1 (a CHAR(1), b INT)ENGINE=Columnstore; INSERT INTO t1 VALUES ('', NULL),('a', 12),('a', 13),('b', 14),('c', 15),('d', 16),('d', 17),('b', 18),('a', 19); SELECT a, STD(b) FROM t1 GROUP BY a ORDER BY a; SELECT a, STDDEV(b) FROM t1 GROUP BY a ORDER BY a; SELECT a, STDDEV_POP(b) FROM t1 GROUP BY a ORDER BY a; SELECT a, STDDEV_SAMP(b) FROM t1 GROUP BY a ORDER BY a; # Clean UP DROP DATABASE mcs96_db;