diff --git a/backend/modules/src/main/java/org.jumpserver.chen.modules/postgresql/PostgresqlActuator.java b/backend/modules/src/main/java/org.jumpserver.chen.modules/postgresql/PostgresqlActuator.java
index bcdb659..663041d 100644
--- a/backend/modules/src/main/java/org.jumpserver.chen.modules/postgresql/PostgresqlActuator.java
+++ b/backend/modules/src/main/java/org.jumpserver.chen.modules/postgresql/PostgresqlActuator.java
@@ -33,12 +33,12 @@ public List<String> getSchemas() throws SQLException {
 
     @Override
     public void changeSchema(String schema) throws SQLException {
-        this.execute(SQL.of("SET SEARCH_PATH TO ?;", schema));
+        this.execute(SQL.of("SET SEARCH_PATH TO '?';", schema));
     }
 
     @Override
     public SQLExecutePlan createPlan(String schema, String table, SQLQueryParams sqlQueryParams) throws SQLException {
-        var sql = SQL.of("select * from ?.?", schema, table);
+        var sql = SQL.of("select * from \"?\".\"?\"", schema, table);
         return this.createPlan(sql, sqlQueryParams);
     }
 }