diff --git a/sql/engines/pgsql.py b/sql/engines/pgsql.py
index 79270bbb20..27ef8272e8 100644
--- a/sql/engines/pgsql.py
+++ b/sql/engines/pgsql.py
@@ -119,6 +119,7 @@ def describe_table(self, db_name, tb_name, **kwargs):
         col.table_name::regclass = des.objoid
         and col.ordinal_position = des.objsubid
         where table_name = '{tb_name}'
+        and col.table_schema = '{schema_name}'
         order by ordinal_position;"""
         result = self.query(db_name=db_name, schema_name=schema_name, sql=sql)
         return result