Added support for BigQuery relation renaming

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Added a "docs" field to macros, with a "show" subfield to allow for hiding macros from the documentation site ([#2430](https://github.com/fishtown-analytics/dbt/issues/2430))
 - Added intersection syntax for model selector ([#2167](https://github.com/fishtown-analytics/dbt/issues/2167), [#2417](https://github.com/fishtown-analytics/dbt/pull/2417))
 - Extends model selection syntax with at most n-th parent/children `dbt run --models 3+m1+2` ([#2052](https://github.com/fishtown-analytics/dbt/issues/2052), [#2485](https://github.com/fishtown-analytics/dbt/pull/2485))
+- Added support for renaming BigQuery relations ([#2520](https://github.com/fishtown-analytics/dbt/issues/2520), [#2521](https://github.com/fishtown-analytics/dbt/pull/2521))
 
 ### Fixes
 - Fixed an error in create_adapter_plugins.py script when -dependency arg not passed ([#2507](https://github.com/fishtown-analytics/dbt/issues/2507), [#2508](https://github.com/fishtown-analytics/dbt/pull/2508))
@@ -14,7 +15,8 @@ Contributors:
  - [@raalsky](https://github.com/Raalsky) ([#2417](https://github.com/fishtown-analytics/dbt/pull/2417), [#2485](https://github.com/fishtown-analytics/dbt/pull/2485))
  - [@alf-mindshift](https://github.com/alf-mindshift) ([#2431](https://github.com/fishtown-analytics/dbt/pull/2431))
  - [@scarrucciu](https://github.com/scarrucciu) ([#2508](https://github.com/fishtown-analytics/dbt/pull/2508))
-- [@southpolemonkey](https://github.com/southpolemonkey)([#2511](https://github.com/fishtown-analytics/dbt/issues/2511))
+ - [@southpolemonkey](https://github.com/southpolemonkey)([#2511](https://github.com/fishtown-analytics/dbt/issues/2511))
+ - [@azhard](https://github.com/azhard) ([#2521](https://github.com/fishtown-analytics/dbt/pull/2521)
 
 ## dbt 0.17.0 (June 08, 2020)
 

plugins/bigquery/dbt/adapters/bigquery/impl.py

@@ -143,9 +143,27 @@ def truncate_relation(self, relation: BigQueryRelation) -> None:
     def rename_relation(
         self, from_relation: BigQueryRelation, to_relation: BigQueryRelation
     ) -> None:
-        raise dbt.exceptions.NotImplementedException(
-            '`rename_relation` is not implemented for this adapter!'
-        )
+        self.cache_renamed(from_relation, to_relation)
+
+        conn = self.connections.get_thread_connection()
+        client = conn.handle
+
+        from_table_ref = self.connections.table_ref(from_relation.database,
+                                                    from_relation.schema,
+                                                    from_relation.identifier,
+                                                    conn)
+        from_table = client.get_table(from_table_ref)
+        if from_table.table_type == "VIEW":
+            raise dbt.exceptions.RuntimeException(
+                'Renaming of views is not currently supported in BigQuery'
+            )
+
+        to_table_ref = self.connections.table_ref(to_relation.database,
+                                                  to_relation.schema,
+                                                  to_relation.identifier,
+                                                  conn)
+        client.copy_table(from_table_ref, to_table_ref)
+        client.delete_table(from_table_ref)
 
     @available
     def list_schemas(self, database: str) -> List[str]:

plugins/bigquery/dbt/include/bigquery/macros/adapters.sql

@@ -123,3 +123,7 @@
 {% macro bigquery__alter_column_comment(relation, column_dict) -%}
   {% do adapter.update_column_descriptions(relation, column_dict) %}
 {% endmacro %}
+
+{% macro bigquery__rename_relation(from_relation, to_relation) -%}
+  {% do adapter.rename_relation(from_relation, to_relation) %}
+{% endmacro %}