Issue type:

[ ] question
[ ] bug report
[x] feature request
[ ] documentation issue

Database system/driver:

[ ] cordova
[ ] mongodb
[ ] mssql
[x] mysql / mariadb
[ ] oracle
[ ] postgres
[ ] sqlite
[ ] sqljs
[ ] react-native
[ ] expo

TypeORM version:

[x] latest
[ ] @next
[ ] 0.x.x (or put your version here)

Along with the ENUM data type, MySQL and MariaDB (and possibly other database systems) have a SET data type. It works like ENUM but allows for the column to hold multiple values. Could we add support for this data type to TypeORM?

Creating a column with a SET datatype could look like this:

enum Role {
  Admin = "Admin",
  Support = "Support",
  Developer = "Developer"
}

@Entity()
export class User {

    @PrimaryGeneratedColumn()
    id: number;

    @Column('set', { enum: Role })
    roles: Role[];
}

We can accomplish something similar with the simple array type, but having support for SET would be nice.