How can we remove 'id' attribute in sequelize model

• If you want to remove or customize the `id` attribute in a Sequelize model, you can do so by explicitly defining the `id` attribute and setting it according to your needs. There are several scenarios where you might want to customize or remove the `id` field:

• Custom ID Attribute: If you want to use a custom field as the primary key instead of the default auto-incrementing integer `id` provided by Sequelize, you can define your attribute and mark it as the primary key.

• No ID Attribute: If your table does not need an `id` column at all, you can set the `id` attribute to `false` in your model definition. This is less common and typically used in specific cases, such as many-to-many join tables.

Customizing the ID Attribute

• To use a custom ID attribute, simply define it in your model and specify that it is a primary key:

    const User = sequelize.define('User', {

        uuid: {

            type: DataTypes.UUID,

            defaultValue: DataTypes.UUIDV4,

            primaryKey: true

        },

        // other attributes...

    });

• In this example, a UUID is used as the primary key instead of an auto-incrementing integer. The `defaultValue` is set to `DataTypes.UUIDV4`, which instructs Sequelize to automatically generate a UUID for new records.

Removing the ID Attribute:

• To completely remove the `id` attribute (which is not common), you would define your model without mentioning the `id` and ensure no other field is marked as a primary key unless you have a specific need for it. However, most tables benefit from having a primary key for identifying records uniquely, so removing the `id` without a replacement is generally not recommended.

• If you're working with a pivot table in a many-to-many relationship, Sequelize allows you to define the table without an `id` field when using the `through` option in associations, and you might not need to explicitly define an `id` in such cases.

• Always ensure that your table has a way to uniquely identify records, either through a custom primary key or the default `id` provided by Sequelize. Removing the `id` without proper consideration can lead to issues with record identification and management.