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gnilrets / trange_join.sql
Last active July 23, 2024 19:26
dbt Snapshot Join
{% macro trange_join(left_model, left_fields, left_primary_key, right_models) %}
{#
This macro allows the user to join two or more snapshot models together on a common
key, with the result being a unique record for each distinct time range. For example,
Given left_model:
| {{ join_key }} | left_field | dbt_valid_from | dbt_valid_to |
| - | - | - | - |
| k1 | L1 | 2020-01-01 | 2020-01-05 |
| k1 | L2 | 2020-01-05 | 2999-12-31 |