Primary Key Inference

models:
  - name: users
    columns:
      - name: user_id
        meta:
          primary-key: true
    ## for compound primary keys, set all parts of the key as a primary-key ##
    # - name: company_id
    #   meta:
    #     primary-key: true

models:
  - name: users
    columns:
      - name: user_id
        tags:
          - primary-key
    ## for compound primary keys, tag all parts of the key ##
    # - name: company_id
    #   tags:
    #       - primary-key

models:
  - name: users
    columns:
      - name: user_id
        tests:
          - unique

models:
  - name: sales
    columns:
      - name: col1
      - name: col2
      ...
    tests:
      - unique:
          column_name: "col1 || col2"
          # or
          column_name: "CONCAT(col1, col2)"
      # we also support dbt_utils unique_combination_of_columns test
      - dbt_utils.unique_combination_of_columns:
          combination_of_columns:
            - order_no
            - order_line