I need to generate auto value in nestjs+postgres. I am generating id using uuid but now I need to generate insuranceno as well. how can I do that?

@Entity()
class Post {
  @PrimaryGeneratedColumn()
  public id: number;
 
  @Column()
  public insuranceNo: string;  //I need to generate this value automatically.
 
  @Column()
  public content: string;  //value of this column is MAIN
}
 
export default Post;

value should be in INS-MAIN-001 INS-MAIN-002, INS-MAIN-003 format. MAIN is coming from content column.

is it possible in nestjs how to do it? INS is prefix