mariadb-columnstore-engine/mysql-test/columnstore/basic/t/mcs37_select_distinct.test

#
# SELECT..DISTINCT in columnstore
# Author: Bharath, bharath.bokka@mariadb.com
#
-- source ../include/have_columnstore.inc

--disable_warnings
DROP DATABASE IF EXISTS mcs37_db;
--enable_warnings

CREATE DATABASE mcs37_db;
USE mcs37_db;

CREATE TABLE t1(col1 INT, col2 CHAR(5))ENGINE=Columnstore;
INSERT INTO t1 VALUES(NULL,''),(1,'a'),(1,'b'),(1,'c'),(2,'dd'),(3,'eee');
SELECT COUNT(DISTINCT col1) FROM t1;
SELECT COUNT(DISTINCT col2) FROM t1;
SELECT DISTINCT col1 FROM t1;
SELECT DISTINCT col1 FROM t1 ORDER BY col1 DESC;
SELECT DISTINCT col2 FROM t1;

CREATE TABLE t2(col1 INT)ENGINE=Columnstore;
INSERT INTO t2 SELECT DISTINCT col1 FROM t1;
SELECT * FROM t2;

CREATE TABLE t3 (name varchar(255));
INSERT INTO t3 VALUES ('aa'),('ab'),('ac'),('ad'),('ae');
SELECT DISTINCT * FROM t3;
SELECT DISTINCT name FROM t3 LIMIT 2;
SELECT DISTINCT 1 FROM t3 LIMIT 3;

# Clean UP
DROP DATABASE mcs37_db;