dbt-selly/macros/should_full_refresh.sql

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2022-03-22 04:03:52 +00:00
{#
This overrides the behavior of the macro `should_full_refresh` so full refresh are triggered if:
- the dbt cli is run with --full-refresh flag or the model is configured explicitly to full_refresh
- the column _airbyte_ab_id does not exists in the normalized tables and make sure it is well populated.
#}
{%- macro need_full_refresh(col_ab_id, target_table=this) -%}
{%- if not execute -%}
{{ return(false) }}
{%- endif -%}
{%- set found_column = [] %}
{%- set cols = adapter.get_columns_in_relation(target_table) -%}
{%- for col in cols -%}
{%- if col.column == col_ab_id -%}
{% do found_column.append(col.column) %}
{%- endif -%}
{%- endfor -%}
{%- if found_column -%}
{{ return(false) }}
{%- else -%}
{{ dbt_utils.log_info(target_table ~ "." ~ col_ab_id ~ " does not exist yet. The table will be created or rebuilt with dbt.full_refresh") }}
{{ return(true) }}
{%- endif -%}
{%- endmacro -%}
{%- macro should_full_refresh() -%}
{% set config_full_refresh = config.get('full_refresh') %}
{%- if config_full_refresh is none -%}
{% set config_full_refresh = flags.FULL_REFRESH %}
{%- endif -%}
{%- if not config_full_refresh -%}
{% set config_full_refresh = need_full_refresh(get_col_ab_id(), this) %}
{%- endif -%}
{% do return(config_full_refresh) %}
{%- endmacro -%}
{%- macro get_col_ab_id() -%}
{{ adapter.dispatch('get_col_ab_id')() }}
{%- endmacro -%}
{%- macro default__get_col_ab_id() -%}
_airbyte_ab_id
{%- endmacro -%}
{%- macro oracle__get_col_ab_id() -%}
"_AIRBYTE_AB_ID"
{%- endmacro -%}
{%- macro snowflake__get_col_ab_id() -%}
_AIRBYTE_AB_ID
{%- endmacro -%}