Data type macros

CHANGELOG.md

@@ -1,3 +1,8 @@
+## dbt-bigquery 1.2.0rc1 (Release TBD)
+
+### Under the hood
+- Modify `BigQueryColumn.numeric_type` to always exclude precision + scale, since the functionality of ["parametrized data types on BigQuery](https://cloud.google.com/bigquery/docs/reference/standard-sql/data-types#parameterized_data_types) is highly constrained ([#214](https://github.com/dbt-labs/dbt-bigquery/pull/214))
+
 ## dbt-bigquery 1.2.0b1 (June 24, 2022)
 
 ### Fixes

dbt/adapters/bigquery/column.py

@@ -1,5 +1,5 @@
 from dataclasses import dataclass
-from typing import Optional, List, TypeVar, Iterable, Type
+from typing import Optional, List, TypeVar, Iterable, Type, Any
 
 from dbt.adapters.base.column import Column
 
@@ -92,6 +92,12 @@ def data_type(self) -> str:
  else:
  return field_type
 
+ @classmethod
+ def numeric_type(cls, dtype: str, precision: Any, scale: Any) -> str:
+ # BigQuery makes life much harder if precision + scale are specified
+ # even if they're fed in here, just return the data type by itself
+ return dtype
+
  def is_string(self) -> bool:
  return self.dtype.lower() == "string"
 

tests/functional/adapter/utils/test_data_types.py

@@ -0,0 +1,34 @@
+import pytest
+from dbt.tests.adapter.utils.data_types.test_type_bigint import BaseTypeBigInt
+from dbt.tests.adapter.utils.data_types.test_type_float import BaseTypeFloat
+from dbt.tests.adapter.utils.data_types.test_type_int import BaseTypeInt
+from dbt.tests.adapter.utils.data_types.test_type_numeric import BaseTypeNumeric
+from dbt.tests.adapter.utils.data_types.test_type_string import BaseTypeString
+from dbt.tests.adapter.utils.data_types.test_type_timestamp import BaseTypeTimestamp
+
+
+class TestTypeBigInt(BaseTypeBigInt):
+ pass
+
+
+class TestTypeFloat(BaseTypeFloat):
+ pass
+
+
+class TestTypeInt(BaseTypeInt):
+ pass
+
+
+class TestTypeNumeric(BaseTypeNumeric):
+ def numeric_fixture_type(self):
+ return "numeric"
+
+
+class TestTypeString(BaseTypeString):
+ pass
+
+
+class TestTypeTimestamp(BaseTypeTimestamp):
+ pass
+
+