chore: improve adapter compatibility old dbt releases

Author: eakmanrq

Makefile

@@ -44,7 +44,7 @@ install-dev-dbt-%:
 	$(MAKE) install-dev; \
 	if [ "$$version" = "1.6.0" ]; then \
 		echo "Applying pydantic override for dbt 1.6.0"; \
-		$(PIP) install 'pydantic>=2.0.0' --reinstall; \
+		$(PIP) install 'pydantic>=2.0.0' 'google-cloud-bigquery==3.30.0' 'databricks-sdk==0.28.0' --reinstall; \
 	fi; \
 	mv pyproject.toml.backup pyproject.toml; \
 	echo "Restored original pyproject.toml"

tests/dbt/test_config.py

@@ -13,6 +13,7 @@
 from sqlmesh.core.dialect import jinja_query
 from sqlmesh.core.model import SqlModel
 from sqlmesh.core.model.kind import OnDestructiveChange, OnAdditiveChange
+from sqlmesh.dbt.builtin import Api
 from sqlmesh.dbt.column import ColumnConfig
 from sqlmesh.dbt.common import Dependencies
 from sqlmesh.dbt.context import DbtContext
@@ -1092,6 +1093,24 @@ def test_sqlmesh_model_kwargs_columns_override():
     assert kwargs.get("columns") == {"c": exp.DataType.build(exp.DataType.Type.UINT)}
 
 
+@pytest.mark.parametrize(
+    "dialect",
+    [
+        "databricks",
+        "duckdb",
+        "postgres",
+        "redshift",
+        "snowflake",
+        "bigquery",
+        "trino",
+        "athena",
+        "clickhouse",
+    ],
+)
+def test_api_class_loading(dialect: str):
+    Api(dialect)
+
+
 def test_empty_vars_config(tmp_path):
     """Test that a dbt project can be loaded with an empty vars config."""
     dbt_project_dir = tmp_path / "test_project"