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CREATE TABLE ten (f1 INTEGER) Engine=InnoDB;
INSERT INTO ten VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) Engine=InnoDB;
INSERT INTO t1 SELECT f1 FROM ten ORDER BY RAND();
UPDATE IGNORE t1 SET f1 = FLOOR(1 + (RAND() * 10)) ORDER BY RAND() LIMIT 5;
sum_matches
1
max_matches
1
DROP TABLE t1;
CREATE TABLE t2 (f1 INTEGER) Engine=InnoDB;
INSERT INTO t2 SELECT f1 FROM ten ORDER BY RAND();
UPDATE IGNORE t2 SET f1 = FLOOR(1 + (RAND() * 10)) ORDER BY RAND() LIMIT 5;
sum_matches
1
DROP TABLE t2;
DROP TABLE ten;
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