add custom date spine along with tests

dbt/include/synapse/macros/utils/date_spine.sql

@@ -0,0 +1,114 @@
+{% macro synapse__date_spine_sql(datepart, start_date, end_date) %}
+
+
+    with
+
+    l0 as (
+
+        select c
+        from (select 1 union all select 1) as d(c)
+
+    ),
+    l1 as (
+
+        select
+            1 as c
+        from l0 as a
+        cross join l0 as b
+
+    ),
+
+    l2 as (
+
+        select 1 as c
+        from l1 as a
+        cross join l1 as b
+    ),
+
+    l3 as (
+
+        select 1 as c
+        from l2 as a
+        cross join l2 as b
+    ),
+
+    l4 as (
+
+        select 1 as c
+        from l3 as a
+        cross join l3 as b
+    ),
+
+    l5 as (
+
+        select 1 as c
+        from l4 as a
+        cross join l4 as b
+    ),
+
+    nums as (
+
+        select row_number() over (order by (select null)) as rownum
+        from l5
+    ),
+
+    rawdata as (
+
+        select top ({{ dbt.datediff(start_date, end_date, datepart)}}) rownum -1 as n
+        from nums
+        order by rownum
+    ),
+
+    all_periods as (
+
+        select cast((
+            {{
+                dbt.dateadd(
+                    datepart,
+                    'n',
+                    start_date
+                )
+            }}
+        ) as date) as date_{{datepart}}
+        from rawdata
+    ),
+
+    filtered as (
+
+        select *
+        from all_periods
+        where date_{{datepart}} <= {{ end_date }}
+
+    )
+
+    select * from filtered
+
+{% endmacro %}
+
+
+{% macro synapse__date_spine(datepart, start_date, end_date) -%}
+
+    {% set date_spine_query %}
+
+        {{ synapse__date_spine_sql(datepart, start_date, end_date) }} order by 1
+
+    {% endset %}
+
+
+    {% set results = run_query(date_spine_query) %}
+
+    {% if execute %}
+
+    {% set results_list = results.columns[0].values() %}
+
+    {% else %}
+
+    {% set results_list = [] %}
+
+    {% endif %}
+
+    {%- for date_field in results_list %}
+        select '{{ date_field }}' as date_{{datepart}} {{ 'union all ' if not loop.last else '' }}
+    {% endfor -%}
+
+{% endmacro %}

tests/functional/adapter/test_date_spine.py

@@ -0,0 +1,5 @@
+from dbt.tests.adapter.utils.test_date_spine import BaseDateSpine
+
+
+class TestDateSpineSynapse(BaseDateSpine):
+    pass