{{
  config(
    materialized='incremental',
    unque_key=['user_id'],
    on_schema_change='append_new_columns',
    full_refresh=false
  ) 
}}

select
  id as user_id,
  email,
  created_at
from {{ ref('stg__users') }}

{% if is_incremental() %}
where created_at > (
  select max(created_at)
  from {{ this }}
)
{% endif %}