diff --git a/dbswitch-product/dbswitch-product-greenplum/src/main/java/com/gitee/dbswitch/product/greenplum/GreenplumMetadataQueryProvider.java b/dbswitch-product/dbswitch-product-greenplum/src/main/java/com/gitee/dbswitch/product/greenplum/GreenplumMetadataQueryProvider.java
index 9e86ab9f..af4f80bc 100644
--- a/dbswitch-product/dbswitch-product-greenplum/src/main/java/com/gitee/dbswitch/product/greenplum/GreenplumMetadataQueryProvider.java
+++ b/dbswitch-product/dbswitch-product-greenplum/src/main/java/com/gitee/dbswitch/product/greenplum/GreenplumMetadataQueryProvider.java
@@ -20,6 +20,7 @@ import lombok.extern.slf4j.Slf4j;
 public class GreenplumMetadataQueryProvider extends PostgresMetadataQueryProvider {
 
   static {
+    systemSchemas.add("pg_aoseg");
     systemSchemas.add("gp_toolkit");
   }
 
diff --git a/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresMetadataQueryProvider.java b/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresMetadataQueryProvider.java
index 59317e52..9c5d55c2 100644
--- a/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresMetadataQueryProvider.java
+++ b/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresMetadataQueryProvider.java
@@ -40,13 +40,18 @@ public class PostgresMetadataQueryProvider extends AbstractMetadataProvider {
           + "where pg_namespace.nspname='%s' and pg_class.relname ='%s'),true) ";
   private static final String SHOW_CREATE_VIEW_SQL_2 =
       "select pg_get_viewdef('\"%s\".\"%s\"', true)";
+  private static final String SHOW_SUB_PARTITIONED_TABLE = "SELECT c.relname AS table_name \n"
+      + "FROM pg_class c JOIN pg_namespace n ON n.oid = c.relnamespace JOIN pg_inherits i ON c.oid = i.inhrelid \n"
+      + "WHERE n.nspname = '%s'";
 
   static {
     systemSchemas.add("pg_temp");
-    systemSchemas.add("pg_aoseg");
     systemSchemas.add("information_schema");
     systemSchemas.add("pg_catalog");
     systemSchemas.add("pg_bitmapindex");
+    systemSchemas.add("pg_toast");
+    systemSchemas.add("partman");
+    systemSchemas.add("repack");
   }
 
   public PostgresMetadataQueryProvider(ProductFactoryProvider factoryProvider) {
@@ -61,6 +66,15 @@ public class PostgresMetadataQueryProvider extends AbstractMetadataProvider {
         .collect(Collectors.toList());
   }
 
+  @Override
+  public List<TableDescription> queryTableList(Connection connection, String schemaName) {
+    List<TableDescription> tableList = super.queryTableList(connection, schemaName);
+    Set<String> partitionedTable = getPartitionedTable(connection, schemaName,
+        SHOW_SUB_PARTITIONED_TABLE);
+    return tableList.stream().filter(t -> !partitionedTable.contains(t.getTableName()))
+        .collect(Collectors.toList());
+  }
+
   @Override
   public String getTableDDL(Connection connection, String schemaName, String tableName) {
     String sql = PostgresqlConst.CREATE_TABLE_SQL_TPL
@@ -263,4 +277,18 @@ public class PostgresMetadataQueryProvider extends AbstractMetadataProvider {
     return results;
   }
 
+  protected Set<String> getPartitionedTable(Connection connection, String schemaName, String sql) {
+    String query = String.format(sql, schemaName);
+    Set<String> partitionedTable = new HashSet<>();
+    try (Statement st = connection.createStatement()) {
+      ResultSet resultSet = st.executeQuery(query);
+      while (resultSet.next()) {
+        partitionedTable.add(resultSet.getString(1));
+      }
+    } catch (SQLException e) {
+      throw new RuntimeException(e);
+    }
+    return partitionedTable;
+  }
+
 }
diff --git a/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresUtils.java b/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresUtils.java
index 6bfaaf0d..c538d822 100644
--- a/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresUtils.java
+++ b/dbswitch-product/dbswitch-product-postgresql/src/main/java/com/gitee/dbswitch/product/postgresql/PostgresUtils.java
@@ -25,6 +25,7 @@ public final class PostgresUtils {
         provider, columnDescriptions, pks, schema, table, false);
   }
 
+
   private PostgresUtils() {
     throw new IllegalStateException();
   }
diff --git a/dbswitch-product/dbswitch-product-sqlserver/src/main/java/com/gitee/dbswitch/product/sqlserver/SqlserverMetadataQueryProvider.java b/dbswitch-product/dbswitch-product-sqlserver/src/main/java/com/gitee/dbswitch/product/sqlserver/SqlserverMetadataQueryProvider.java
index df86da70..c8b4be8c 100644
--- a/dbswitch-product/dbswitch-product-sqlserver/src/main/java/com/gitee/dbswitch/product/sqlserver/SqlserverMetadataQueryProvider.java
+++ b/dbswitch-product/dbswitch-product-sqlserver/src/main/java/com/gitee/dbswitch/product/sqlserver/SqlserverMetadataQueryProvider.java
@@ -47,6 +47,8 @@ public class SqlserverMetadataQueryProvider extends AbstractMetadataProvider {
     excludesSchemaNames.add("db_backupoperator");
     excludesSchemaNames.add("db_datareader");
     excludesSchemaNames.add("db_owner");
+    excludesSchemaNames.add("sys");
+    excludesSchemaNames.add("INFORMATION_SCHEMA");
   }
 
   public SqlserverMetadataQueryProvider(ProductFactoryProvider factoryProvider) {