Merge main into 1.12.latest (v1.12.0 re-cut)

Author: sd-db

.github/workflows/min-deps-parse.yml

@@ -0,0 +1,59 @@
+# Installs dbt-databricks at lowest-direct dependency resolution and
+# runs `dbt parse`, catching constraint ranges that admit versions
+# the code doesn't support. Default test paths resolve to
+# highest-compatible versions, so lower bounds drift untested.
+#
+# Runs post-merge rather than on PRs because fork PRs cannot issue
+# the OIDC token required by the JFrog proxy and protected runner.
+# Acceptable compromise: a bad merge sits on the target branch
+# briefly before the gate fires, but well before any release tag.
+
+name: Min-Deps Parse
+
+on:
+  push:
+    branches:
+      - "main"
+      - "*.latest"
+  workflow_dispatch:
+
+permissions:
+  id-token: write
+  contents: read
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  parse-at-lowest-direct:
+    name: dbt parse at lowest-direct resolution
+    runs-on:
+      group: databricks-protected-runner-group
+      labels: linux-ubuntu-latest
+    timeout-minutes: 5
+
+    steps:
+      - name: Check out the repository
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+
+      - name: Setup JFrog PyPI Proxy
+        uses: ./.github/actions/setup-jfrog-pypi
+
+      - name: Set up Python
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5
+        with:
+          python-version: "3.10"
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@38f3f104447c67c051c4a08e39b64a148898af3a  # v4
+        with:
+          cache-local-path: ~/.cache/uv
+
+      - name: Install dbt-databricks at lowest-direct dep resolution
+        run: |
+          uv venv --python 3.10
+          uv pip install --resolution lowest-direct .
+
+      - name: dbt parse against min-deps fixture
+        run: .venv/bin/dbt parse --project-dir tests/min_deps_smoke --profiles-dir tests/min_deps_smoke

CHANGELOG.md

@@ -1,4 +1,4 @@
-## dbt-databricks 1.12.0 (May 14, 2026)
+## dbt-databricks 1.12.0 (May 18, 2026)
 
 ### Features
 
@@ -14,6 +14,7 @@
 - Fix `metric_view` failing with `METRIC_VIEW_INVALID_VIEW_DEFINITION` when models use bare `{{ ref(...) }}` for the `source:` field ([#1361](https://github.com/databricks/dbt-databricks/issues/1361))
 - Fix `RefreshConfig.__eq__` self/other typo where two configs with the same `cron` but different `time_zone_value` compared equal
 - Fix streaming-table DROP-SCHEDULE path that was silently filtered out of the changeset
+- Use pydantic v1-compatible API in `refresh.py` so the adapter imports on environments shipping pydantic v1 ([#1461](https://github.com/databricks/dbt-databricks/pull/1461))
 
 ### Under the Hood
 

dbt/adapters/databricks/relation_configs/refresh.py

@@ -5,7 +5,7 @@
 from dbt.adapters.contracts.relation import RelationConfig
 from dbt.adapters.relation_configs.config_base import RelationResults
 from dbt_common.exceptions import DbtRuntimeError
-from pydantic import model_validator
+from pydantic import root_validator
 
 from dbt.adapters.databricks.relation_configs import base
 from dbt.adapters.databricks.relation_configs.base import (
@@ -41,6 +41,9 @@ class RefreshMode(str, Enum):
 # these all canonicalize to the same UTC for equality.
 _UTC_ALIASES = {"UTC", "ETC/UTC"}
 
+# Mutually-exclusive mode discriminators on RefreshConfig.
+_MODE_FIELDS = ("cron", "every", "on_update")
+
 
 def _canonical_tz(tz: Optional[str]) -> str:
     s = (tz or "UTC").upper()
@@ -98,33 +101,27 @@ class RefreshConfig(DatabricksComponentConfig):
     # affect identity.
     is_altered: bool = False
 
-    @model_validator(mode="after")
-    def _validate_mode_fields(self) -> "RefreshConfig":
-        modes_set = [name for name, value in self._mode_signals() if value]
+    @root_validator(skip_on_failure=True)
+    def _validate_mode_fields(cls, values: dict) -> dict:
+        modes_set = [name for name in _MODE_FIELDS if values.get(name)]
         if len(modes_set) > 1:
             raise DbtRuntimeError(
                 f"Refresh schedule must specify at most one of cron / every / on_update;"
                 f" got {modes_set}."
             )
-        if self.time_zone_value is not None and self.cron is None:
+        if values.get("time_zone_value") is not None and values.get("cron") is None:
             raise DbtRuntimeError("`time_zone_value` is only valid when `cron` is set.")
-        if self.at_most_every is not None:
-            if not self.on_update:
+        at_most_every = values.get("at_most_every")
+        if at_most_every is not None:
+            if not values.get("on_update"):
                 raise DbtRuntimeError("`at_most_every` is only valid when `on_update` is True.")
-            seconds = _interval_seconds(self.at_most_every)
+            seconds = _interval_seconds(at_most_every)
             if seconds < 60:
                 raise DbtRuntimeError(
                     f"`at_most_every` must be at least 60 seconds (1 minute);"
-                    f" got {self.at_most_every!r} ({seconds}s)."
+                    f" got {at_most_every!r} ({seconds}s)."
                 )
-        return self
-
-    def _mode_signals(self) -> tuple[tuple[str, Any], ...]:
-        return (
-            ("cron", self.cron),
-            ("every", self.every),
-            ("on_update", self.on_update),
-        )
+        return values
 
     @property
     def mode(self) -> RefreshMode:
@@ -176,8 +173,8 @@ def get_diff(self, other: "RefreshConfig") -> Optional["RefreshConfig"]:
         if self == other:
             return None
         is_altered = self.mode != RefreshMode.MANUAL and other.mode != RefreshMode.MANUAL
-        # model_construct skips re-validation; only is_altered changes, other fields stay valid.
-        return self.model_construct(**{**self.model_dump(), "is_altered": is_altered})
+        # copy() skips re-validation; only is_altered changes, other fields stay valid.
+        return self.copy(update={"is_altered": is_altered})
 
 
 class RefreshProcessor(DatabricksComponentProcessor[RefreshConfig]):

tests/min_deps_smoke/.gitignore

@@ -0,0 +1,4 @@
+target/
+logs/
+dbt_packages/
+.user.yml

tests/min_deps_smoke/dbt_project.yml

@@ -0,0 +1,5 @@
+name: 'min_deps_smoke'
+version: '1.0.0'
+config-version: 2
+
+profile: 'min_deps_smoke'

tests/min_deps_smoke/models/select_one.sql

@@ -0,0 +1 @@
+select 1 as n

tests/min_deps_smoke/profiles.yml

@@ -0,0 +1,9 @@
+min_deps_smoke:
+  target: dev
+  outputs:
+    dev:
+      type: databricks
+      schema: min_deps_smoke
+      host: fake.databricks.test
+      http_path: /sql/1.0/warehouses/fake
+      token: fake-token