diff --git a/base_model/ddl_v2.sql b/base_model/ddl_v2.sql
index e517559..c27fc36 100644
--- a/base_model/ddl_v2.sql
+++ b/base_model/ddl_v2.sql
@@ -65,6 +65,17 @@ CREATE TABLE BASIC.MODEL_ATTRIBUTE (
 	FOREIGN KEY (ATTRIBUTE_ID) REFERENCES BASIC.ATTRIBUTE (ID) ON DELETE CASCADE
 );
 
+CREATE TABLE BASIC.MODEL_ATTRIBUTE_PUBLIC (
+	ID BIGSERIAL PRIMARY KEY,
+	ATTRIBUTE_GROUP_ID BIGINT NOT NULL,
+	ATTRIBUTE_ID BIGINT NOT NULL,
+
+	UNIQUE (ATTRIBUTE_GROUP_ID, ATTRIBUTE_ID),
+
+	FOREIGN KEY (ATTRIBUTE_GROUP_ID) REFERENCES BASIC.ATTRIBUTE_GROUP (ID),
+	FOREIGN KEY (ATTRIBUTE_ID) REFERENCES BASIC.ATTRIBUTE (ID) ON DELETE CASCADE
+);
+
 CREATE TABLE BASIC.ATTRIBUTE_TEMPLATE (
 	ID BIGSERIAL PRIMARY KEY,
 	TEMPLATE_NAME VARCHAR(64) NOT NULL DEFAULT '',