DROP DATABASE IF EXISTS mcs224_db;
CREATE DATABASE mcs224_db;
USE mcs224_db;
CREATE TABLE t1
(
t1_INT INT,
t1_DOUBLE DOUBLE,
t1_FLOAT FLOAT,
t1_TEXT TEXT,
t1_CHAR_1 CHAR(1),
t1_DATETIME DATETIME
)ENGINE=Columnstore;
INSERT INTO t1 VALUES(NULL, NULL, NULL, '', '', NULL);
INSERT INTO t1 VALUES(25, -3.797, -7.402866, 'abcd', 'p', '2020-10-18 11:22:33');
SELECT t1_INT, REPEAT(t1_INT, 2) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_INT, 2)
NULL	NULL
25	2525
SELECT t1_INT, REPEAT(t1_INT, 4) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_INT, 4)
NULL	NULL
25	25252525
SELECT t1_INT, REPEAT(t1_INT, -1) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_INT, -1)
NULL	NULL
25	NULL
SELECT t1_DOUBLE, REPEAT(t1_DOUBLE, 2) FROM t1 ORDER BY 1;
t1_DOUBLE	REPEAT(t1_DOUBLE, 2)
NULL	NULL
-3.797	-3.797e00-3.797e00
SELECT t1_DOUBLE, REPEAT(t1_DOUBLE, 4) FROM t1 ORDER BY 1;
t1_DOUBLE	REPEAT(t1_DOUBLE, 4)
NULL	NULL
-3.797	-3.797e00-3.797e00-3.797e00-3.797e00
SELECT t1_DOUBLE, REPEAT(t1_DOUBLE, -1) FROM t1 ORDER BY 1;
t1_DOUBLE	REPEAT(t1_DOUBLE, -1)
NULL	NULL
-3.797	NULL
SELECT t1_INT, REPEAT(t1_FLOAT, 2) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_FLOAT, 2)
NULL	NULL
25	-7.40287e00-7.40287e00
SELECT t1_INT, REPEAT(t1_FLOAT, -1) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_FLOAT, -1)
NULL	NULL
25	NULL
SELECT t1_INT, REPEAT(t1_TEXT, 2) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_TEXT, 2)
NULL	NULL
25	abcdabcd
SELECT t1_INT, REPEAT(t1_TEXT, 4) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_TEXT, 4)
NULL	NULL
25	abcdabcdabcdabcd
SELECT t1_INT, REPEAT(t1_TEXT, -1) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_TEXT, -1)
NULL	NULL
25	NULL
SELECT t1_INT, REPEAT(t1_CHAR_1, 2) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_CHAR_1, 2)
NULL	NULL
25	pp
SELECT t1_INT, REPEAT(t1_CHAR_1, 4) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_CHAR_1, 4)
NULL	NULL
25	pppp
SELECT t1_INT, REPEAT(t1_CHAR_1, -1) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_CHAR_1, -1)
NULL	NULL
25	NULL
SELECT t1_INT, REPEAT(t1_DATETIME, 2) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_DATETIME, 2)
NULL	NULL
25	2020-10-18 11:22:332020-10-18 11:22:33
SELECT t1_INT, REPEAT(t1_DATETIME, -1) FROM t1 ORDER BY 1;
t1_INT	REPEAT(t1_DATETIME, -1)
NULL	NULL
25	NULL
DROP DATABASE mcs224_db;