table.sql

{% materialization table, adapter = 'spark' %}

  {%- set identifier = model['alias'] -%}

  {%- set old_relation = adapter.get_relation(database=database, schema=schema, identifier=identifier) -%}
  {%- set target_relation = api.Relation.create(identifier=identifier,
                                                schema=schema,
                                                database=database,
                                                type='table') -%}

  {{ run_hooks(pre_hooks) }}

  -- setup: if the target relation already exists, drop it
  -- in case if the existing and future table is delta, we want to do a
  -- create or replace table instead of dropping, so we don't have the table unavailable
  {% if old_relation and not (old_relation.is_delta and config.get('file_format', validator=validation.any[basestring]) == 'delta') -%}
    {{ adapter.drop_relation(old_relation) }}
  {%- endif %}

  -- build model
  {% call statement('main') -%}
    {{ create_table_as(False, target_relation, sql) }}
  {%- endcall %}
  
  {% do persist_docs(target_relation, model) %}

  {{ run_hooks(post_hooks) }}

  {{ return({'relations': [target_relation]})}}

{% endmaterialization %}