package migrationsimport ("context""database/sql""github.com/pressly/goose/v3")func init() {goose.AddMigrationContext(upDropEmailUniqueConstraint, downDropEmailUniqueConstraint)}func upDropEmailUniqueConstraint(_ context.Context, tx *sql.Tx) error {_, err := tx.Exec(`create table user_dg_tmp(id varchar(255) not nullprimary key,user_name varchar(255) default '' not nullunique,name varchar(255) default '' not null,email varchar(255) default '' not null,password varchar(255) default '' not null,is_admin bool default FALSE not null,last_login_at datetime,last_access_at datetime,created_at datetime not null,updated_at datetime not null);insert into user_dg_tmp(id, user_name, name, email, password, is_admin, last_login_at, last_access_at, created_at, updated_at) select id, user_name, name, email, password, is_admin, last_login_at, last_access_at, created_at, updated_at from user;drop table user;alter table user_dg_tmp rename to user;`)return err}func downDropEmailUniqueConstraint(_ context.Context, tx *sql.Tx) error {return nil}