README.md is ineffective for dbt cloud

[jerichomcleod]

Describe the bug

The section compare_column_values -> Advanced usage - dbt Cloud contains a code snippet for replacing the .print_table() function, but the code snippet does not work in dbt cloud.

Steps to reproduce

Use the code snippet

{# in dbt Develop #}

{% set old_etl_relation_query %}
    select * from public.dim_product
    where is_latest
{% endset %}

{% set new_etl_relation_query %}
    select * from {{ ref('dim_product') }}
{% endset %}

{% set audit_query = audit_helper.compare_column_values(
    a_query=old_etl_relation_query,
    b_query=new_etl_relation_query,
    primary_key="product_id",
    column_to_compare="status"
) %}

{% set audit_results = run_query(audit_query) %}

{% do log(audit_results.column_names, info=True) %}
{% for row in audit_results.rows %}
    {% do log(row.values(), info=True) %}
{% endfor %}

As suggested by the readme, where the last 4 lines include the suggested code change to make this compatible with dbt cloud.

The actual expected results can be obtained by instead directly invoking the macro:

{# in dbt Develop #}

{% set old_etl_relation_query %}
    select * from public.dim_product
    where is_latest
{% endset %}

{% set new_etl_relation_query %}
    select * from {{ ref('dim_product') }}
{% endset %}

{{ audit_helper.compare_column_values(
    a_query=old_etl_relation_query,
    b_query=new_etl_relation_query,
    primary_key="product_id",
    column_to_compare="status"
) }}

[Joel Labes]

@jerichomcleod thanks for this callout - I'd welcome a PR to the readme to improve this!

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[github-actions]

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