--disable_warnings DROP TABLE IF EXISTS t1; --enable_warnings CREATE TABLE t1(c1 CHAR(10) NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES('abc'); INSERT INTO t1 (c1) VALUES('def'); INSERT IGNORE INTO t1 (c1) VALUES('abc'); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 VARCHAR(10) NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES('abc'); INSERT INTO t1 (c1) VALUES('def'); INSERT IGNORE INTO t1 (c1) VALUES('abc'); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 BINARY(10) NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES('abc'); INSERT INTO t1 (c1) VALUES('def'); INSERT IGNORE INTO t1 (c1) VALUES('abc'); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 VARBINARY(10) NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES('abc'); INSERT INTO t1 (c1) VALUES('def'); INSERT IGNORE INTO t1 (c1) VALUES('abc'); SELECT * FROM t1; DROP TABLE t1;