diff --git a/src/xml2db/model.py b/src/xml2db/model.py
index 3038189..09dcf39 100644
--- a/src/xml2db/model.py
+++ b/src/xml2db/model.py
@@ -545,12 +545,15 @@ def get_occurs(particle):
             or parent_node.type.has_simple_content()
         ):
             if parent_node.type.base_type is not None:
+                parent_base_type = parent_node.type.base_type
+                while parent_base_type.base_type is not None:
+                    parent_base_type = parent_base_type.base_type
                 (
                     data_type,
                     min_length,
                     max_length,
                     allow_empty,
-                ) = recurse_parse_simple_type([parent_node.type.base_type])
+                ) = recurse_parse_simple_type([parent_base_type])
             else:
                 data_type, min_length, max_length, allow_empty = "string", 0, None, True
 
diff --git a/src/xml2db/table/reused_table.py b/src/xml2db/table/reused_table.py
index ce3d62f..3c09851 100644
--- a/src/xml2db/table/reused_table.py
+++ b/src/xml2db/table/reused_table.py
@@ -1,3 +1,5 @@
+from hashlib import sha1
+
 from sqlalchemy import (
     Table,
     Column,
@@ -10,8 +12,15 @@
     Sequence,
 )
 
-from .transformed_table import DataModelTableTransformed
 from .column import DataModelColumn
+from .transformed_table import DataModelTableTransformed
+
+
+def shorten_str(x: str, max_len: int = 30) -> str:
+    if len(x) > max_len:
+        h = sha1(x.encode("utf8"))
+        return f"{x[:(max_len - 7)]}_{h.hexdigest()[1:6]}"
+    return x
 
 
 class DataModelTableReused(DataModelTableTransformed):
@@ -79,7 +88,7 @@ def get_col(temp=False):
             yield from hash_col.get_sqlalchemy_column(temp)
             yield UniqueConstraint(
                 self.data_model.model_config["record_hash_column_name"],
-                name=f"{prefix if temp else ''}{self.name}_xml2db_record_hash",
+                name=f"{prefix if temp else ''}{shorten_str(self.name)}_xml2db_record_hash",
             )
 
         # build target table
diff --git a/tests/sample_models/orders/base_types.xsd b/tests/sample_models/orders/base_types.xsd
index cadefa7..c10a3cd 100644
--- a/tests/sample_models/orders/base_types.xsd
+++ b/tests/sample_models/orders/base_types.xsd
@@ -36,7 +36,19 @@
     <xs:simpleType name="CoordinatesType">
         <xs:restriction base="xs:float" />
     </xs:simpleType>
-   <xs:simpleType name="CoordinatesListType">
-      <xs:list itemType="bt:CoordinatesType"/>
-   </xs:simpleType>
+    <xs:simpleType name="CoordinatesListType">
+        <xs:list itemType="bt:CoordinatesType"/>
+    </xs:simpleType>
+    <xs:simpleType name="PostalCodeType-base">
+        <xs:restriction base="bt:stringtype">
+            <xs:maxLength value="10"/>
+        </xs:restriction>
+    </xs:simpleType>
+    <xs:complexType name="PostalCodeType">
+        <xs:simpleContent>
+            <xs:extension base="bt:PostalCodeType-base">
+                <xs:attribute name="codingSystem" type="xs:string" use="required"/>
+            </xs:extension>
+        </xs:simpleContent>
+    </xs:complexType>
 </xs:schema>
\ No newline at end of file
diff --git a/tests/sample_models/orders/orders.xsd b/tests/sample_models/orders/orders.xsd
index c54fcd3..4fa2801 100644
--- a/tests/sample_models/orders/orders.xsd
+++ b/tests/sample_models/orders/orders.xsd
@@ -11,16 +11,10 @@
         </xs:choice>
     </xs:complexType>
 
-    <xs:simpleType name="ZipCodeType-base">
-        <xs:restriction base="bt:stringtype">
-            <xs:maxLength value="10"/>
-        </xs:restriction>
-    </xs:simpleType>
-
     <xs:complexType name="ZipCodeType">
         <xs:simpleContent>
-            <xs:extension base="ZipCodeType-base">
-                <xs:attribute name="codingSystem" type="xs:string" use="required"/>
+            <xs:extension base="bt:PostalCodeType">
+                <xs:attribute name="state" type="xs:string"/>
             </xs:extension>
         </xs:simpleContent>
     </xs:complexType>
diff --git a/tests/sample_models/orders/orders_ddl_mssql_version0.sql b/tests/sample_models/orders/orders_ddl_mssql_version0.sql
index 3371f25..51662d8 100644
--- a/tests/sample_models/orders/orders_ddl_mssql_version0.sql
+++ b/tests/sample_models/orders/orders_ddl_mssql_version0.sql
@@ -6,6 +6,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(1000) NULL, 
 	city VARCHAR(1000) NULL, 
 	[zip_codingSystem] VARCHAR(1000) NULL, 
+	zip_state VARCHAR(1000) NULL, 
 	zip_value VARCHAR(1000) NULL, 
 	country VARCHAR(1000) NULL, 
 	[phoneNumber] VARCHAR(8000) NULL, 
diff --git a/tests/sample_models/orders/orders_ddl_mssql_version1.sql b/tests/sample_models/orders/orders_ddl_mssql_version1.sql
index 21f3854..a7840aa 100644
--- a/tests/sample_models/orders/orders_ddl_mssql_version1.sql
+++ b/tests/sample_models/orders/orders_ddl_mssql_version1.sql
@@ -6,6 +6,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(1000) NULL, 
 	city VARCHAR(1000) NULL, 
 	[zip_codingSystem] VARCHAR(1000) NULL, 
+	zip_state VARCHAR(1000) NULL, 
 	zip_value VARCHAR(1000) NULL, 
 	country VARCHAR(1000) NULL, 
 	[phoneNumber] VARCHAR(8000) NULL, 
diff --git a/tests/sample_models/orders/orders_ddl_mssql_version2.sql b/tests/sample_models/orders/orders_ddl_mssql_version2.sql
index a533b08..d09e427 100644
--- a/tests/sample_models/orders/orders_ddl_mssql_version2.sql
+++ b/tests/sample_models/orders/orders_ddl_mssql_version2.sql
@@ -17,6 +17,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(1000) NULL, 
 	city VARCHAR(1000) NULL, 
 	[zip_codingSystem] VARCHAR(1000) NULL, 
+	zip_state VARCHAR(1000) NULL, 
 	zip_value VARCHAR(1000) NULL, 
 	country VARCHAR(1000) NULL, 
 	[phoneNumber] VARCHAR(8000) NULL, 
@@ -100,6 +101,7 @@ CREATE TABLE shiporder (
 	orderperson_address VARCHAR(1000) NULL, 
 	orderperson_city VARCHAR(1000) NULL, 
 	[orderperson_zip_codingSystem] VARCHAR(1000) NULL, 
+	orderperson_zip_state VARCHAR(1000) NULL, 
 	orderperson_zip_value VARCHAR(1000) NULL, 
 	orderperson_country VARCHAR(1000) NULL, 
 	[orderperson_phoneNumber] VARCHAR(8000) NULL, 
diff --git a/tests/sample_models/orders/orders_ddl_mysql_version0.sql b/tests/sample_models/orders/orders_ddl_mysql_version0.sql
index 70929f2..45347ff 100644
--- a/tests/sample_models/orders/orders_ddl_mysql_version0.sql
+++ b/tests/sample_models/orders/orders_ddl_mysql_version0.sql
@@ -6,6 +6,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(255), 
 	city VARCHAR(255), 
 	`zip_codingSystem` VARCHAR(255), 
+	zip_state VARCHAR(255), 
 	zip_value VARCHAR(255), 
 	country VARCHAR(255), 
 	`phoneNumber` VARCHAR(4000), 
diff --git a/tests/sample_models/orders/orders_ddl_mysql_version1.sql b/tests/sample_models/orders/orders_ddl_mysql_version1.sql
index 89d8d35..2d6626b 100644
--- a/tests/sample_models/orders/orders_ddl_mysql_version1.sql
+++ b/tests/sample_models/orders/orders_ddl_mysql_version1.sql
@@ -6,6 +6,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(255), 
 	city VARCHAR(255), 
 	`zip_codingSystem` VARCHAR(255), 
+	zip_state VARCHAR(255), 
 	zip_value VARCHAR(255), 
 	country VARCHAR(255), 
 	`phoneNumber` VARCHAR(4000), 
diff --git a/tests/sample_models/orders/orders_ddl_mysql_version2.sql b/tests/sample_models/orders/orders_ddl_mysql_version2.sql
index f9901cf..c3ab769 100644
--- a/tests/sample_models/orders/orders_ddl_mysql_version2.sql
+++ b/tests/sample_models/orders/orders_ddl_mysql_version2.sql
@@ -17,6 +17,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(255), 
 	city VARCHAR(255), 
 	`zip_codingSystem` VARCHAR(255), 
+	zip_state VARCHAR(255), 
 	zip_value VARCHAR(255), 
 	country VARCHAR(255), 
 	`phoneNumber` VARCHAR(4000), 
@@ -100,6 +101,7 @@ CREATE TABLE shiporder (
 	orderperson_address VARCHAR(255), 
 	orderperson_city VARCHAR(255), 
 	`orderperson_zip_codingSystem` VARCHAR(255), 
+	orderperson_zip_state VARCHAR(255), 
 	orderperson_zip_value VARCHAR(255), 
 	orderperson_country VARCHAR(255), 
 	`orderperson_phoneNumber` VARCHAR(4000), 
diff --git a/tests/sample_models/orders/orders_ddl_postgresql_version0.sql b/tests/sample_models/orders/orders_ddl_postgresql_version0.sql
index 540e8de..204cd70 100644
--- a/tests/sample_models/orders/orders_ddl_postgresql_version0.sql
+++ b/tests/sample_models/orders/orders_ddl_postgresql_version0.sql
@@ -6,6 +6,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(1000), 
 	city VARCHAR(1000), 
 	"zip_codingSystem" VARCHAR(1000), 
+	zip_state VARCHAR(1000), 
 	zip_value VARCHAR(1000), 
 	country VARCHAR(1000), 
 	"phoneNumber" VARCHAR(8000), 
diff --git a/tests/sample_models/orders/orders_ddl_postgresql_version1.sql b/tests/sample_models/orders/orders_ddl_postgresql_version1.sql
index 7d1bf33..7955a4b 100644
--- a/tests/sample_models/orders/orders_ddl_postgresql_version1.sql
+++ b/tests/sample_models/orders/orders_ddl_postgresql_version1.sql
@@ -6,6 +6,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(1000), 
 	city VARCHAR(1000), 
 	"zip_codingSystem" VARCHAR(1000), 
+	zip_state VARCHAR(1000), 
 	zip_value VARCHAR(1000), 
 	country VARCHAR(1000), 
 	"phoneNumber" VARCHAR(8000), 
diff --git a/tests/sample_models/orders/orders_ddl_postgresql_version2.sql b/tests/sample_models/orders/orders_ddl_postgresql_version2.sql
index 17f6cd2..ed9c440 100644
--- a/tests/sample_models/orders/orders_ddl_postgresql_version2.sql
+++ b/tests/sample_models/orders/orders_ddl_postgresql_version2.sql
@@ -17,6 +17,7 @@ CREATE TABLE orderperson (
 	address VARCHAR(1000), 
 	city VARCHAR(1000), 
 	"zip_codingSystem" VARCHAR(1000), 
+	zip_state VARCHAR(1000), 
 	zip_value VARCHAR(1000), 
 	country VARCHAR(1000), 
 	"phoneNumber" VARCHAR(8000), 
@@ -100,6 +101,7 @@ CREATE TABLE shiporder (
 	orderperson_address VARCHAR(1000), 
 	orderperson_city VARCHAR(1000), 
 	"orderperson_zip_codingSystem" VARCHAR(1000), 
+	orderperson_zip_state VARCHAR(1000), 
 	orderperson_zip_value VARCHAR(1000), 
 	orderperson_country VARCHAR(1000), 
 	"orderperson_phoneNumber" VARCHAR(8000), 
diff --git a/tests/sample_models/orders/orders_erd_version0.md b/tests/sample_models/orders/orders_erd_version0.md
index 443b28c..83291d8 100644
--- a/tests/sample_models/orders/orders_erd_version0.md
+++ b/tests/sample_models/orders/orders_erd_version0.md
@@ -36,6 +36,7 @@ erDiagram
         string address
         string city
         string zip_codingSystem
+        string zip_state
         string zip_value
         string country
         string-N phoneNumber
diff --git a/tests/sample_models/orders/orders_erd_version1.md b/tests/sample_models/orders/orders_erd_version1.md
index 4b07efa..2261d1c 100644
--- a/tests/sample_models/orders/orders_erd_version1.md
+++ b/tests/sample_models/orders/orders_erd_version1.md
@@ -36,6 +36,7 @@ erDiagram
         string address
         string city
         string zip_codingSystem
+        string zip_state
         string zip_value
         string country
         string-N phoneNumber
diff --git a/tests/sample_models/orders/orders_erd_version2.md b/tests/sample_models/orders/orders_erd_version2.md
index 26e96d9..fa07d52 100644
--- a/tests/sample_models/orders/orders_erd_version2.md
+++ b/tests/sample_models/orders/orders_erd_version2.md
@@ -10,6 +10,7 @@ erDiagram
         string orderperson_address
         string orderperson_city
         string orderperson_zip_codingSystem
+        string orderperson_zip_state
         string orderperson_zip_value
         string orderperson_country
         string-N orderperson_phoneNumber
@@ -44,6 +45,7 @@ erDiagram
         string address
         string city
         string zip_codingSystem
+        string zip_state
         string zip_value
         string country
         string-N phoneNumber
diff --git a/tests/sample_models/orders/xml/order2.xml b/tests/sample_models/orders/xml/order2.xml
index 5926472..214f243 100644
--- a/tests/sample_models/orders/xml/order2.xml
+++ b/tests/sample_models/orders/xml/order2.xml
@@ -6,7 +6,7 @@
       <name>Alice</name>
       <address>string</address>
       <city>string</city>
-      <zip codingSystem="int">21093</zip>
+      <zip codingSystem="int" state="NY">21093</zip>
       <country>string</country>
       <companyId>
         <lei>198210983210983HE1209</lei>