#
# Test MAX() Window Function
# Author: Bharath, bharath.bokka@mariadb.com
#
-- source ../include/have_columnstore.inc

--disable_warnings
DROP DATABASE IF EXISTS mcs138_db;
--enable_warnings

CREATE DATABASE mcs138_db;
USE mcs138_db;

CREATE TABLE t1 (a CHAR(1), b INT)ENGINE=Columnstore;
INSERT INTO t1 VALUES ('', NULL),('a', 123),('a', 1),('b', 123),('c', 1861),('c', 1991),('d', 10701),('d', 1071),('a', 92);

SELECT a, b, MAX(b) OVER(ORDER BY a) max FROM t1;
SELECT a, b, MAX(b) OVER(ORDER BY b DESC) max FROM t1;
SELECT a, b, MAX(b) OVER w max FROM t1 WINDOW w AS (ORDER BY a DESC);
SELECT a, b, MAX(b) OVER w max FROM t1 WINDOW w AS (ORDER BY b);
SELECT a, b, MAX(b) OVER(PARTITION BY a) max FROM t1;
SELECT a, b, MAX(b) OVER(PARTITION BY b) max FROM t1;
SELECT a, b, MAX(b) OVER(PARTITION BY a ORDER BY a DESC) max FROM t1;
SELECT a, b, MAX(b) OVER(PARTITION BY a ORDER BY b DESC) max FROM t1;
SELECT a, b, MAX(b) OVER(PARTITION BY a ORDER BY b ASC) max FROM t1;
SELECT a, b, MAX(b) OVER(PARTITION BY b ORDER BY a DESC) max FROM t1;
SELECT a, b, MAX(b) OVER(PARTITION BY b ORDER BY b DESC) max FROM t1;

# Clean UP
DROP DATABASE mcs138_db;