Add a utility staging table for calendar days (#1757)

update

Co-authored-by: Raymond Cheng <[email protected]>

warehouse/dbt/models/staging/utility/stg_utility__calendar.sql

@@ -0,0 +1,36 @@
+{{ config(
+    materialized='table',
+    partition_by={
+      "field": "date_timestamp",
+      "data_type": "date",
+      "granularity": "month",
+    },
+) }}
+
+{% set start_date = '2013-01-01' %}
+{% set end_date = '2099-12-31' %}
+
+with date_range as (
+  select
+    date_add('{{ start_date }}', interval day day) as date_timestamp
+  from
+    unnest(
+      generate_array(0, date_diff('{{ end_date }}', '{{ start_date }}', day))
+    )
+      as day
+)
+
+select
+  date(date_timestamp) as date_timestamp,
+  date_trunc(date_timestamp, month) as first_day_of_month,
+  last_day(date_timestamp, month) as last_day_of_month,
+  format_date('%A', date_timestamp) as day_of_week,
+  format_date('%B', date_timestamp) as month,
+  extract(year from date_timestamp) as year,
+  format_date('%Y-%m', date_timestamp) as year_month,
+  coalesce(
+    extract(dayofweek from date_timestamp) in (1, 7),
+    false
+  ) as is_weekend
+from
+  date_range