774
774
id select_type table type possible_keys key key_len ref rows Extra
775
775
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL # Using where
777
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=innodb;
778
insert into t1 values (0,0,0,'ABCDEFGHIJ'),(2,2,2,'BCDEFGHIJK'),(1,1,1,'CDEFGHIJKL');
779
LOCK TABLES t1 WRITE;
780
insert into t1 values (99,1,2,'D'),(1,1,2,'D');
781
ERROR 23000: Duplicate entry '1-1' for key 'PRIMARY'
794
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=innodb;
795
insert into t1 values (0,0,0,'ABCDEFGHIJ'),(2,2,2,'BCDEFGHIJK'),(1,1,1,'CDEFGHIJKL');
796
LOCK TABLES t1 WRITE;
798
insert into t1 values (99,1,2,'D'),(1,1,2,'D');
799
ERROR 23000: Duplicate entry '1-1' for key 'PRIMARY'
805
insert ignore into t1 values (100,1,2,'D'),(1,1,99,'D');
807
select id,id3 from t1;
815
777
create table t1 (a char(20), unique (a(5))) engine=innodb;
817
779
create table t1 (a char(20), index (a(5))) engine=innodb;