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create table bug51378 (
col1 int not null,
col2 blob not null,
col3 time not null) engine = innodb;
create unique index idx on bug51378(col1, col2(31));
alter table bug51378 add unique index idx2(col1, col2(31));
Warnings:
Warning 1831 Duplicate index 'idx2' defined on the table 'test.bug51378'. This is deprecated and will be disallowed in a future release.
create unique index idx3 on bug51378(col1, col3);
SHOW CREATE TABLE bug51378;
Table Create Table
bug51378 CREATE TABLE `bug51378` (
`col1` int NOT NULL,
`col2` blob NOT NULL,
`col3` time NOT NULL,
UNIQUE KEY `idx3` (`col1`,`col3`),
UNIQUE KEY `idx` (`col1`,`col2`(31)),
UNIQUE KEY `idx2` (`col1`,`col2`(31))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
drop index idx3 on bug51378;
SHOW CREATE TABLE bug51378;
Table Create Table
bug51378 CREATE TABLE `bug51378` (
`col1` int NOT NULL,
`col2` blob NOT NULL,
`col3` time NOT NULL,
UNIQUE KEY `idx` (`col1`,`col2`(31)),
UNIQUE KEY `idx2` (`col1`,`col2`(31))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
alter table bug51378 add primary key idx3(col1, col2(31));
SHOW CREATE TABLE bug51378;
Table Create Table
bug51378 CREATE TABLE `bug51378` (
`col1` int NOT NULL,
`col2` blob NOT NULL,
`col3` time NOT NULL,
PRIMARY KEY (`col1`,`col2`(31)),
UNIQUE KEY `idx` (`col1`,`col2`(31)),
UNIQUE KEY `idx2` (`col1`,`col2`(31))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
drop table bug51378;
create table bug51378 (
col1 int not null,
col2 blob not null,
col3 time not null, primary key(col1, col2(31))) engine = innodb;
create unique index idx on bug51378(col1, col2(31));
SHOW CREATE TABLE bug51378;
Table Create Table
bug51378 CREATE TABLE `bug51378` (
`col1` int NOT NULL,
`col2` blob NOT NULL,
`col3` time NOT NULL,
PRIMARY KEY (`col1`,`col2`(31)),
UNIQUE KEY `idx` (`col1`,`col2`(31))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
drop table bug51378;
create table bug51378 (
col1 int not null,
col2 int ) engine = innodb;
create unique index idx on bug51378(col1, col2);
SHOW CREATE TABLE bug51378;
Table Create Table
bug51378 CREATE TABLE `bug51378` (
`col1` int NOT NULL,
`col2` int DEFAULT NULL,
UNIQUE KEY `idx` (`col1`,`col2`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
drop table bug51378;
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