Skip to content

Altered PIT statement for performance improvements #224

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Altered PIT statement for performance improvements #224

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
48 changes: 30 additions & 18 deletions macros/tables/databricks/pit.sql
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,23 @@ WITH as_of_dates AS (
SELECT * FROM {{ as_of_table_relation }}
),

{%- for sat_name in satellites -%}
{%- set sat_pk_name = (satellites[sat_name]['pk'].keys() | list)[0] -%}
{%- set sat_ldts_name = (satellites[sat_name]['ldts'].keys() | list)[0] -%}
{%- set sat_pk = satellites[sat_name]['pk'][sat_pk_name] -%}
{%- set sat_ldts = satellites[sat_name]['ldts'][sat_ldts_name] -%}
{%- set column_str = "{}.{}".format(sat_name | lower ~ '_src', sat_ldts) -%}

{{ sat_name | lower ~ '_src' }} AS (
SELECT
*,
LEAD({{ sat_ldts }},1,'9999-12-31 23:59:59.999999') OVER (PARTITION BY {{ sat_pk }} ORDER BY {{ sat_ldts }}) as next_{{ sat_ldts }}
FROM
{{ ref(sat_name) }}
),

{%- endfor %}

{%- if automate_dv.is_any_incremental() %}

{{ automate_dv.as_of_date_window(src_pk, src_ldts, stage_tables_ldts, ref(source_model)) }},
Expand Down Expand Up @@ -59,21 +76,21 @@ backfill AS (

{% if enable_ghost_record %}

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_pk }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_pk }},
{{ automate_dv.binary_ghost(none, hash) }})
AS {{ sat_name }}_{{ sat_pk_name }},

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }},
{{ automate_dv.date_ghost(date_type = sat_ldts.dtype, alias=none) }})
AS {{ sat_name }}_{{ sat_ldts_name }}

{%- else %}

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_pk }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_pk }},
{{ automate_dv.cast_binary(ghost_pk, quote=true) }})
AS {{ sat_name }}_{{ sat_pk_name }},

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }},
{{ automate_dv.cast_date(ghost_date, as_string=true, datetime=true) }})
AS {{ sat_name }}_{{ sat_ldts_name }}

Expand All @@ -90,13 +107,11 @@ backfill AS (
{%- set sat_pk = satellites[sat_name]['pk'][sat_pk_name] -%}
{%- set sat_ldts = satellites[sat_name]['ldts'][sat_ldts_name] %}

LEFT OUTER JOIN {{ ref(sat_name) }} AS {{ sat_name | lower ~ '_src' }}
LEFT OUTER JOIN {{ sat_name | lower ~ '_src' }}
ON a.{{ src_pk }} = {{ sat_name | lower }}_src.{{ sat_pk }}
AND {{ sat_name | lower ~ '_src'}}.{{ sat_ldts }} <= a.AS_OF_DATE
AND {{ sat_name | lower ~ '_src'}}.next_{{ sat_ldts }} > a.AS_OF_DATE
{% endfor %}

GROUP BY
{{ automate_dv.prefix([src_pk], 'a') }}, a.AS_OF_DATE
),
{%- endif %}

Expand All @@ -123,21 +138,21 @@ new_rows AS (

{% if enable_ghost_record %}

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_pk }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_pk }},
{{ automate_dv.binary_ghost(none, hash) }})
AS {{ sat_name }}_{{ sat_pk_name }},

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }},
{{ automate_dv.date_ghost(date_type = sat_ldts.dtype, alias=none) }})
AS {{ sat_name }}_{{ sat_ldts_name }}

{%- else %}

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_pk }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_pk }},
{{ automate_dv.cast_binary(ghost_pk, quote=true) }})
AS {{ sat_name }}_{{ sat_pk_name }},

COALESCE(MAX({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }}),
COALESCE({{ sat_name | lower ~ '_src' }}.{{ sat_ldts }},
{{ automate_dv.cast_date(ghost_date, as_string=true, datetime=true) }})
AS {{ sat_name }}_{{ sat_ldts_name }}

Expand All @@ -155,14 +170,11 @@ new_rows AS (
{%- set sat_pk = satellites[sat_name]['pk'][sat_pk_name] -%}
{%- set sat_ldts = satellites[sat_name]['ldts'][sat_ldts_name] %}

LEFT OUTER JOIN {{ ref(sat_name) }} AS {{ sat_name | lower ~ '_src' }}
LEFT OUTER JOIN {{ sat_name | lower ~ '_src' }}
ON a.{{ src_pk }} = {{ sat_name | lower }}_src.{{ sat_pk }}
AND {{ sat_name | lower ~ '_src'}}.{{ sat_ldts }} <= a.AS_OF_DATE
AND {{ sat_name | lower ~ '_src'}}.next_{{ sat_ldts }} > a.AS_OF_DATE
{% endfor %}

GROUP BY
{{ automate_dv.prefix([src_pk], 'a') }},
a.AS_OF_DATE
),

pit AS (
Expand All @@ -177,4 +189,4 @@ pit AS (

SELECT DISTINCT * FROM pit

{%- endmacro -%}
{%- endmacro -%}