diff --git a/plugins/dbgate-plugin-postgres/src/backend/sql/tableModifications.js b/plugins/dbgate-plugin-postgres/src/backend/sql/tableModifications.js
index 700405da..b8ad3691 100644
--- a/plugins/dbgate-plugin-postgres/src/backend/sql/tableModifications.js
+++ b/plugins/dbgate-plugin-postgres/src/backend/sql/tableModifications.js
@@ -2,7 +2,7 @@ module.exports = `
 select infoTables.table_schema as "schema_name", infoTables.table_name as "pure_name", 
     (
         select md5(string_agg(
-            infoColumns.column_name || '|' || infoColumns.data_type || '|' || infoColumns.is_nullable::varchar(255)  || '|' || coalesce(infoColumns.character_maximum_length, -1)::varchar(255) 
+            infoColumns.column_name || '|' || case when (infoColumns.data_type = 'USER-DEFINED' OR infoColumns.data_type = 'ARRAY') then infoColumns.udt_name::regtype::text else infoColumns.data_type end || '|' || infoColumns.is_nullable::varchar(255)  || '|' || coalesce(infoColumns.character_maximum_length, -1)::varchar(255) 
                 || '|' || coalesce(infoColumns.numeric_precision, -1)::varchar(255) ,
             ',' order by infoColumns.ordinal_position
         )) as "hash_code_columns"