--disable_warnings DROP TABLE IF EXISTS t1; --enable_warnings CREATE TABLE t1(c1 DATE NOT NULL PRIMARY KEY); SET TIMESTAMP=1171346973; # 2007-02-13 15:09:33 INSERT INTO t1 (c1) VALUES(NOW()); INSERT INTO t1 (c1) VALUES(ADDTIME(NOW(),'1 01:01:01')); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(NOW()); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 YEAR NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES(1999); INSERT INTO t1 (c1) VALUES(2000); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(1999); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 TIME NOT NULL PRIMARY KEY); SET TIMESTAMP=1171346973; # 2007-02-13 15:09:33 INSERT INTO t1 (c1) VALUES(NOW()); INSERT INTO t1 (c1) VALUES(ADDTIME(NOW(),'1 01:01:01')); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(NOW()); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 YEAR NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES(1999); INSERT INTO t1 (c1) VALUES(2000); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(1999); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 DATETIME NOT NULL PRIMARY KEY); SET TIMESTAMP=1171346973; # 2007-02-13 15:09:33 INSERT INTO t1 (c1) VALUES(NOW()); INSERT INTO t1 (c1) VALUES(ADDTIME(NOW(),'1 01:01:01')); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(NOW()); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 YEAR NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES(1999); INSERT INTO t1 (c1) VALUES(2000); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(1999); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 TIMESTAMP NOT NULL PRIMARY KEY); SET TIMESTAMP=1171346973; # 2007-02-13 15:09:33 INSERT INTO t1 (c1) VALUES(NOW()); INSERT INTO t1 (c1) VALUES(ADDTIME(NOW(),'1 01:01:01')); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(NOW()); SELECT * FROM t1; DROP TABLE t1; CREATE TABLE t1(c1 YEAR NOT NULL PRIMARY KEY); INSERT INTO t1 (c1) VALUES(1999); INSERT INTO t1 (c1) VALUES(2000); --error ER_DUP_ENTRY INSERT INTO t1 (c1) VALUES(1999); SELECT * FROM t1; DROP TABLE t1;