Base field storage for users has now multilingual support

Users' base field storage has been converted to support the standard multilingual variance capability for base fields that was introduced earlier.

• The {users} base table only holds
  | uid* | uuid | langcode |
  Primary key: uid
• The new {users_field_data} table has been introduced to store multilingual values for base fields.
  | uid* | langcode* | preferred_langcode | preferred_admin_langcode | name | pass | mail | signature | signature_format | timezone | created | changed | access | login | init | default_langcode |
  • Primary key: uid + langcode

For further details read Added multilingual support to the standard entity schema.

The signature field is translatable by default.