Add test.

pyproject.toml

@@ -54,7 +54,7 @@ path = "dbt/adapters/postgres/__version__.py"
 
 [tool.hatch.envs.default]
 dependencies = [
-    "dbt-adapters @ git+https://github.com/dbt-labs/dbt-adapters.git",
+    "dbt-adapters @ git+https://github.com/dbt-labs/dbt-adapters.git@BASE-207/add_test",
     "dbt-common @ git+https://github.com/dbt-labs/dbt-common.git",
     'pre-commit==3.7.0;python_version>="3.9"',
     'pre-commit==3.5.0;python_version=="3.8"',
@@ -71,7 +71,7 @@ docker-prod = "docker build -f docker/Dockerfile -t dbt-postgres ."
 
 [tool.hatch.envs.unit-tests]
 dependencies = [
-    "dbt-adapters @ git+https://github.com/dbt-labs/dbt-adapters.git",
+    "dbt-adapters @ git+https://github.com/dbt-labs/dbt-adapters.git@BASE-207/add_test",
     "dbt-common @ git+https://github.com/dbt-labs/dbt-common.git",
     "dbt-core @ git+https://github.com/dbt-labs/dbt-core.git#subdirectory=core",
     "freezegun",
@@ -86,7 +86,7 @@ all = "python -m pytest {args:tests/unit}"
 [tool.hatch.envs.integration-tests]
 template = "unit-tests"
 extra-dependencies = [
-    "dbt-tests-adapter @ git+https://github.com/dbt-labs/dbt-adapters.git#subdirectory=dbt-tests-adapter",
+    "dbt-tests-adapter @ git+https://github.com/dbt-labs/dbt-adapters.git@BASE-207/add_test",
 ]
 [tool.hatch.envs.integration-tests.env-vars]
 DBT_TEST_USER_1 = "dbt_test_user_1"

tests/functional/adapter/dbt_show/test_dbt_show.py

@@ -0,0 +1,17 @@
+from dbt.tests.adapter.dbt_show.test_dbt_show import (
+    BaseShowSqlHeader,
+    BaseShowLimit,
+    BaseShowDoesNotHandleDoubleLimit,
+)
+
+
+class TestPostgresShowSqlHeader(BaseShowSqlHeader):
+    pass
+
+
+class TestPostgresShowLimit(BaseShowLimit):
+    pass
+
+
+class TestPostgresShowDoesNotHandleDoubleLimit(BaseShowDoesNotHandleDoubleLimit):
+    pass