DROP DATABASE IF EXISTS mcs136_db;
CREATE DATABASE mcs136_db;
USE mcs136_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, SUM(b) OVER(ORDER BY a) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	92	216
a	1	216
a	123	216
b	123	339
c	1991	4191
c	1861	4191
d	1071	15963
d	10701	15963
SELECT a, b, SUM(b) OVER(ORDER BY b DESC) sum FROM t1;
a	b	sum
d	10701	10701
c	1991	12692
c	1861	14553
d	1071	15624
a	123	15870
b	123	15870
a	92	15962
a	1	15963
NULL	NULL	15963
SELECT a, b, SUM(b) OVER w sum FROM t1 WINDOW w AS (ORDER BY a DESC);
a	b	sum
d	10701	11772
d	1071	11772
c	1861	15624
c	1991	15624
b	123	15747
a	92	15963
a	123	15963
a	1	15963
NULL	NULL	15963
SELECT a, b, SUM(b) OVER w sum FROM t1 WINDOW w AS (ORDER BY b);
a	b	sum
NULL	NULL	NULL
a	1	1
a	92	93
b	123	339
a	123	339
d	1071	1410
c	1861	3271
c	1991	5262
d	10701	15963
SELECT a, b, SUM(b) OVER(PARTITION BY a) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	92	216
a	1	216
a	123	216
b	123	123
c	1991	3852
c	1861	3852
d	1071	11772
d	10701	11772
SELECT a, b, SUM(b) OVER(PARTITION BY b) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	1	1
a	92	92
b	123	246
a	123	246
d	1071	1071
c	1861	1861
c	1991	1991
d	10701	10701
SELECT a, b, SUM(b) OVER(PARTITION BY a ORDER BY a DESC) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	92	216
a	1	216
a	123	216
b	123	123
c	1991	3852
c	1861	3852
d	1071	11772
d	10701	11772
SELECT a, b, SUM(b) OVER(PARTITION BY a ORDER BY b DESC) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	123	123
a	92	215
a	1	216
b	123	123
c	1991	1991
c	1861	3852
d	10701	10701
d	1071	11772
SELECT a, b, SUM(b) OVER(PARTITION BY a ORDER BY b ASC) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	1	1
a	92	93
a	123	216
b	123	123
c	1861	1861
c	1991	3852
d	1071	1071
d	10701	11772
SELECT a, b, SUM(b) OVER(PARTITION BY b ORDER BY a DESC) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	1	1
a	92	92
b	123	123
a	123	246
d	1071	1071
c	1861	1861
c	1991	1991
d	10701	10701
SELECT a, b, SUM(b) OVER(PARTITION BY b ORDER BY b DESC) sum FROM t1;
a	b	sum
NULL	NULL	NULL
a	1	1
a	92	92
b	123	246
a	123	246
d	1071	1071
c	1861	1861
c	1991	1991
d	10701	10701
DROP DATABASE mcs136_db;