Use the ra3_node config (#1750)

Author: tauhid621

dbt-redshift/.changes/unreleased/Fixes-20260312-131531.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Use the ra3_node config where it was used earlier.
+time: 2026-03-12T13:15:31.28122+05:30
+custom:
+    Author: tauhid621
+    Issue: "1750"

dbt-redshift/src/dbt/adapters/redshift/impl.py

@@ -188,8 +188,9 @@ def verify_database(self, database):
         if database.startswith('"'):
             database = database.strip('"')
         expected = self.config.credentials.database
+        ra3_node = self.config.credentials.ra3_node
 
-        if database.lower() != expected.lower() and not self.use_show_apis():
+        if database.lower() != expected.lower() and not ra3_node and not self.use_show_apis():
             raise dbt_common.exceptions.NotImplementedError(
                 "Cross-db references allowed only in RA3.* node. ({} vs {})".format(
                     database, expected
@@ -314,8 +315,9 @@ def standardize_grants_dict(self, grants_table: "agate.Table") -> dict:
     def _get_catalog_schemas(self, manifest):
         # redshift(besides ra3) only allow one database (the main one)
         schemas = super(SQLAdapter, self)._get_catalog_schemas(manifest)
+        allow_multiple_databases = self.config.credentials.ra3_node or self.use_show_apis()
         try:
-            return schemas.flatten(allow_multiple_databases=self.use_show_apis())
+            return schemas.flatten(allow_multiple_databases=allow_multiple_databases)
         except dbt_common.exceptions.DbtRuntimeError as exc:
             msg = f"Cross-db references allowed only in {self.type()} RA3.* node. Got {exc.msg}"
             raise dbt_common.exceptions.CompilationError(msg)

dbt-redshift/tests/unit/test_verify_database.py

@@ -0,0 +1,51 @@
+import pytest
+
+import dbt_common.exceptions
+from dbt.adapters.redshift.impl import RedshiftAdapter
+
+
+@pytest.fixture
+def adapter(mocker):
+    mock_config = mocker.MagicMock()
+    mock_config.credentials.database = "dev"
+    mock_config.credentials.ra3_node = False
+    mock_mp_context = mocker.MagicMock()
+    adapter = RedshiftAdapter(mock_config, mock_mp_context)
+    adapter.use_show_apis = lambda: False
+    return adapter
+
+
+class TestVerifyDatabase:
+    """Tests for verify_database cross-database reference gating."""
+
+    def test_same_database_always_passes(self, adapter):
+        assert adapter.verify_database("dev") == ""
+
+    def test_same_database_case_insensitive(self, adapter):
+        assert adapter.verify_database("DEV") == ""
+
+    def test_quoted_database_strips_quotes(self, adapter):
+        assert adapter.verify_database('"dev"') == ""
+
+    def test_cross_db_blocked_by_default(self, adapter):
+        with pytest.raises(dbt_common.exceptions.NotImplementedError, match="Cross-db"):
+            adapter.verify_database("other_db")
+
+    def test_cross_db_allowed_with_ra3_node(self, adapter):
+        adapter.config.credentials.ra3_node = True
+        assert adapter.verify_database("other_db") == ""
+
+    def test_cross_db_allowed_with_use_show_apis(self, adapter):
+        adapter.use_show_apis = lambda: True
+        assert adapter.verify_database("other_db") == ""
+
+    def test_cross_db_allowed_with_both_flags(self, adapter):
+        adapter.config.credentials.ra3_node = True
+        adapter.use_show_apis = lambda: True
+        assert adapter.verify_database("other_db") == ""
+
+    def test_cross_db_blocked_without_either_flag(self, adapter):
+        adapter.config.credentials.ra3_node = False
+        adapter.use_show_apis = lambda: False
+        with pytest.raises(dbt_common.exceptions.NotImplementedError, match="Cross-db"):
+            adapter.verify_database("other_db")