Test dbt-core#7537 (#437) (#491)

(cherry picked from commit df8a9ab)

Co-authored-by: Jeremy Cohen <[email protected]>

tests/functional/adapter/test_constraints.py

@@ -8,6 +8,7 @@
     BaseIncrementalConstraintsRuntimeDdlEnforcement,
     BaseIncrementalConstraintsRollback,
     BaseModelConstraintsRuntimeEnforcement,
+    BaseConstraintQuotedColumn,
 )
 
 _expected_sql_redshift = """
@@ -124,3 +125,25 @@ def expected_sql(self):
 )
 ;
 """
+
+
+class TestRedshiftConstraintQuotedColumn(BaseConstraintQuotedColumn):
+    @pytest.fixture(scope="class")
+    def expected_sql(self):
+        return """
+create table <model_identifier> (
+    id integer not null,
+    "from" text not null,
+    date_day text
+) ;
+insert into <model_identifier>
+(
+    select id, "from", date_day
+    from (
+        select
+          'blue' as "from",
+          1 as id,
+          '2019-01-01' as date_day
+    ) as model_subq
+);
+"""