DROP DATABASE IF EXISTS mcs259_db;
CREATE DATABASE mcs259_db;
USE mcs259_db;
CREATE TABLE t1 (a INT, b VARCHAR(30))ENGINE=Columnstore;
INSERT INTO t1 VALUES (NULL, NULL),(1, 'mariadb'),(2, 'columnstore'),(3, 'mariadb columnstore');
SELECT INSTR('abcdefghi', 'i') FROM t1 LIMIT 1;
INSTR('abcdefghi', 'i')
9
SELECT INSTR('abcdefghi', 'z') FROM t1 LIMIT 1;
INSTR('abcdefghi', 'z')
0
SELECT INSTR('pqrstuvwxyz', 'u') FROM t1 LIMIT 1;
INSTR('pqrstuvwxyz', 'u')
6
SELECT INSTR('mnopmm', 'm') FROM t1 LIMIT 1;
INSTR('mnopmm', 'm')
1
SELECT INSTR('mnopmm', 'mm') FROM t1 LIMIT 1;
INSTR('mnopmm', 'mm')
5
SELECT b, INSTR(b, 'mariadb') FROM t1 ORDER BY 1;
b	INSTR(b, 'mariadb')
NULL	NULL
columnstore	0
mariadb	1
mariadb columnstore	1
SELECT b, INSTR(concat(b,'pqr'), 'qr') FROM t1 ORDER BY 1;
b	INSTR(concat(b,'pqr'), 'qr')
NULL	NULL
columnstore	13
mariadb	9
mariadb columnstore	21
SELECT b, INSTR(concat('pqr', b), 'qr') FROM t1 ORDER BY 1;
b	INSTR(concat('pqr', b), 'qr')
NULL	NULL
columnstore	2
mariadb	2
mariadb columnstore	2
SELECT b, INSTR(b) FROM t1 ORDER BY 1;
ERROR 42000: Incorrect parameter count in the call to native function 'INSTR'
DROP DATABASE mcs259_db;