57 lines
2.1 KiB
SQL
57 lines
2.1 KiB
SQL
/*
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This model provides Month-To-Date (MTD) necessary dates for MTD-based models to work.
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- For month-to-month complete information, it retrieves all end month dates that have elapsed since 2020.
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- For month-to-date information, it retrieves the days of the current month of this year up to yesterday.
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Additionally, it also gets the days of its equivalent month from last year previous the current day of month of today.
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Example:
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Imagine we have are at 4th June 2024.
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- We will get the dates for 1st, 2nd, 3rd of June 2024.
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- We will also get the dates for 1st, 2nd, 3rd of June 2023.
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- We will get all end of months from 2020 to yesterday,
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i.e., 31st January 2020, 29th February 2020, ..., 30th April 2024, 31st May 2024.
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*/
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with
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int_dates as (select * from {{ ref("int_dates") }} where date_day >= {{ var("start_date") }}),
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raw_dates as (
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select
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id.year_number as year,
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id.month_of_year as month,
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id.day_of_month as day,
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id.date_day as date,
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id.month_start_date as first_day_month,
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id.month_end_date as last_day_month,
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now()::date as today
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from int_dates id
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)
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-- Dates keeps only end of month (EOM) dates, as well as
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-- dates corresponding to the current month and the same month last year
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select distinct
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rd.year,
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rd.month,
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rd.day,
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rd.date,
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rd.first_day_month,
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rd.last_day_month,
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case when rd.date = rd.last_day_month then 1 else 0 end as is_end_of_month,
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case
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when date_trunc('month', rd.date) = date_trunc('month', rd.today) then 1 else 0
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end as is_current_month
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from raw_dates rd
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where
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rd.today > rd.date
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-- include only up-to yesterday
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and (
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rd.date = rd.last_day_month
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-- keep all last day of the month
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or rd.date >= date_trunc('month', rd.today)
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-- keep all individual days of the current month
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or (
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rd.year = extract(year from rd.today) - 1
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and rd.month = extract(month from rd.today)
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and rd.day < extract(day from rd.today)
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)
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-- keep all days of same month last day up to yesterday's day
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)
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