Merge branch 'main' into multiple-snapshot-unique-keys

.changes/unreleased/Breaking Changes-20241016-180629.yaml

@@ -0,0 +1,6 @@
+kind: Breaking Changes
+body: Drop support for Python 3.8
+time: 2024-10-16T18:06:29.535761-04:00
+custom:
+  Author: mikealfare
+  Issue: "332"

.changes/unreleased/Fixes-20241016-160412.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Always validate an incremental model's `incremental_strategy`
+time: 2024-10-16T16:04:12.58581-05:00
+custom:
+  Author: QMalcolm
+  Issue: "330"

.github/actions/publish-results/action.yml

@@ -5,7 +5,7 @@ inputs:
     description: File type for file name stub (e.g. "unit-tests")
     required: true
   python-version:
-    description: Python version for the file name stub (e.g. "3.8")
+    description: Python version for the file name stub (e.g. "3.9")
     required: true
   source-file:
     description: File to be uploaded

.github/workflows/unit-tests.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     steps:
       - name: Check out repository

.pre-commit-config.yaml

@@ -23,10 +23,10 @@ repos:
     -   id: black
         args:
         -   --line-length=99
-        -   --target-version=py38
         -   --target-version=py39
         -   --target-version=py310
         -   --target-version=py311
+        -   --target-version=py312
         -   --force-exclude=dbt/adapters/events/adapter_types_pb2.py
 
 -   repo: https://github.com/pycqa/flake8

dbt-tests-adapter/dbt/tests/adapter/basic/files.py

@@ -186,6 +186,10 @@
   {{ config(materialized="incremental") }}
 """
 
+config_materialized_incremental_invalid_strategy = """
+  {{ config(materialized="incremental", incremental_strategy="bad_strategy") }}
+"""
+
 config_materialized_var = """
   {{ config(materialized=var("materialized_var", "table"))}}
 """
@@ -217,3 +221,6 @@
 ephemeral_view_sql = config_materialized_view + model_ephemeral
 ephemeral_table_sql = config_materialized_table + model_ephemeral
 incremental_sql = config_materialized_incremental + model_incremental
+incremental_invalid_strategy_sql = (
+    config_materialized_incremental_invalid_strategy + model_incremental
+)

dbt-tests-adapter/dbt/tests/adapter/basic/test_incremental.py

@@ -86,6 +86,45 @@ def test_incremental_not_schema_change(self, project):
         assert run_result == RunStatus.Success
 
 
+class BaseIncrementalBadStrategy:
+    @pytest.fixture(scope="class")
+    def project_config_update(self):
+        return {"name": "incremental"}
+
+    @pytest.fixture(scope="class")
+    def models(self):
+        return {
+            "incremental.sql": files.incremental_invalid_strategy_sql,
+            "schema.yml": files.schema_base_yml,
+        }
+
+    @pytest.fixture(scope="class")
+    def seeds(self):
+        return {"base.csv": files.seeds_base_csv, "added.csv": files.seeds_added_csv}
+
+    @pytest.fixture(autouse=True)
+    def clean_up(self, project):
+        yield
+        with project.adapter.connection_named("__test"):
+            relation = project.adapter.Relation.create(
+                database=project.database, schema=project.test_schema
+            )
+            project.adapter.drop_schema(relation)
+
+    def test_incremental_invalid_strategy(self, project):
+        # seed command
+        results = run_dbt(["seed"])
+        assert len(results) == 2
+
+        # try to run the incremental model, it should fail on the first attempt
+        results = run_dbt(["run"], expect_pass=False)
+        assert len(results.results) == 1
+        assert (
+            'dbt could not find an incremental strategy macro with the name "get_incremental_bad_strategy_sql"'
+            in results.results[0].message
+        )
+
+
 class Testincremental(BaseIncremental):
     pass
 

dbt-tests-adapter/pyproject.toml

@@ -4,7 +4,7 @@ name = "dbt-tests-adapter"
 description = "The set of reusable tests and test fixtures used to test common functionality"
 readme = "README.md"
 keywords = ["dbt", "adapter", "adapters", "database", "elt", "dbt-core", "dbt Core", "dbt Cloud", "dbt Labs"]
-requires-python = ">=3.8.0"
+requires-python = ">=3.9.0"
 authors = [
     { name = "dbt Labs", email = "info@dbtlabs.com" },
 ]
@@ -17,7 +17,6 @@ classifiers = [
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: Microsoft :: Windows",
     "Operating System :: POSIX :: Linux",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",

dbt/include/global_project/macros/materializations/models/incremental/incremental.sql

@@ -32,6 +32,9 @@
 
   {% set to_drop = [] %}
 
+  {% set incremental_strategy = config.get('incremental_strategy') or 'default' %}
+  {% set strategy_sql_macro_func = adapter.get_incremental_strategy_macro(context, incremental_strategy) %}
+
   {% if existing_relation is none %}
       {% set build_sql = get_create_table_as_sql(False, target_relation, sql) %}
   {% elif full_refresh_mode %}
@@ -52,9 +55,7 @@
     {% endif %}
 
     {#-- Get the incremental_strategy, the macro to use for the strategy, and build the sql --#}
-    {% set incremental_strategy = config.get('incremental_strategy') or 'default' %}
     {% set incremental_predicates = config.get('predicates', none) or config.get('incremental_predicates', none) %}
-    {% set strategy_sql_macro_func = adapter.get_incremental_strategy_macro(context, incremental_strategy) %}
     {% set strategy_arg_dict = ({'target_relation': target_relation, 'temp_relation': temp_relation, 'unique_key': unique_key, 'dest_columns': dest_columns, 'incremental_predicates': incremental_predicates }) %}
     {% set build_sql = strategy_sql_macro_func(strategy_arg_dict) %}
 

pyproject.toml

@@ -4,7 +4,7 @@ name = "dbt-adapters"
 description = "The set of adapter protocols and base functionality that supports integration with dbt-core"
 readme = "README.md"
 keywords = ["dbt", "adapter", "adapters", "database", "elt", "dbt-core", "dbt Core", "dbt Cloud", "dbt Labs"]
-requires-python = ">=3.8.0"
+requires-python = ">=3.9.0"
 authors = [
     { name = "dbt Labs", email = "info@dbtlabs.com" },
 ]
@@ -17,7 +17,6 @@ classifiers = [
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: Microsoft :: Windows",
     "Operating System :: POSIX :: Linux",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",