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adding dispatch for bigquery diff macro #8

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adding dispatch for bigquery diff macro #8

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35 changes: 27 additions & 8 deletions dbt_unit_test/templates/diff_macro.sql
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Original file line number Diff line number Diff line change
@@ -1,10 +1,29 @@
{% macro test_diff(model, test) %}
with extra_rows as (
SELECT * FROM {{ model }} EXCEPT SELECT * FROM {{ test }}
),
missing_rows as (
SELECT * FROM {{ test }} EXCEPT SELECT * FROM {{ model }}
)
SELECT count(*)
FROM (SELECT * FROM extra_rows UNION ALL SELECT * FROM missing_rows) a
{{ return(adapter.dispatch('test_diff')(model, test)) }}
{% endmacro %}

{% macro default__test_diff(model, test) %}
with extra_rows as (
SELECT * FROM {{ model }} EXCEPT SELECT * FROM {{ test }}
),
missing_rows as (
SELECT * FROM {{ test }} EXCEPT SELECT * FROM {{ model }}
)
SELECT count(*)
FROM (SELECT * FROM extra_rows UNION ALL SELECT * FROM missing_rows) a
{% endmacro %}

{% macro bigquery__test_diff(model, test) %}
WITH extra_rows AS (
SELECT * FROM {{ model }} EXCEPT DISTINCT SELECT * FROM {{ test }}
),
missing_rows AS (
SELECT * FROM {{ test }} EXCEPT DISTINCT SELECT * FROM {{ model }}
),
all_missing as (
SELECT COUNT(*) AS missing_count
FROM (SELECT * FROM extra_rows UNION ALL SELECT * FROM missing_rows) a
)
SELECT missing_count FROM all_missing
WHERE missing_count > 0
{% endmacro %}