diff --git a/integration_tests/models/staging/source_1/source.yml b/integration_tests/models/staging/source_1/source.yml
index f4e9495e..4e55fa28 100644
--- a/integration_tests/models/staging/source_1/source.yml
+++ b/integration_tests/models/staging/source_1/source.yml
@@ -8,6 +8,9 @@ sources:
     tables:
       - name: table_1
         description: this is table 1.
+        columns:
+          - name: my_column
+            description: description for my source column
       - name: table_2
       - name: table_4
       - name: table_5
diff --git a/models/staging/graph/base/base_source_columns.sql b/models/staging/graph/base/base_source_columns.sql
index e71adc16..98705232 100644
--- a/models/staging/graph/base/base_source_columns.sql
+++ b/models/staging/graph/base/base_source_columns.sql
@@ -18,6 +18,9 @@ select
     cast(null as {{ dbt.type_string()}}) as name,
     cast(null as {{ dbt_project_evaluator.type_large_string()}}) as description,
     cast(null as {{ dbt.type_string()}}) as data_type,
+    cast(null as {{ dbt.type_string()}}) as constraints,
+    cast(True as boolean) as has_not_null_constraint,
+    cast(0 as {{ dbt.type_int() }}) as constraints_count,
     cast(null as {{ dbt.type_string()}}) as quote
 
 from dummy_cte