Removed call to cond_push for empty cond

sql/ha_ndbcluster.cc

@@ -6106,24 +6106,21 @@ COND*
 ha_ndbcluster::cond_push(const COND *cond) 
 { 
   DBUG_ENTER("cond_push");
-  if (cond)
-  {
-    Ndb_cond_stack *ndb_cond = new Ndb_cond_stack();
-    DBUG_EXECUTE("where",print_where((COND *)cond, m_tabname););
-    if (m_cond_stack)
+  Ndb_cond_stack *ndb_cond = new Ndb_cond_stack();
+  DBUG_EXECUTE("where",print_where((COND *)cond, m_tabname););
+  if (m_cond_stack)
     ndb_cond->next= m_cond_stack;
-    else
-      ndb_cond->next= NULL;
-    m_cond_stack= ndb_cond;
-    
-    if (serialize_cond(cond, ndb_cond))
-    {
+  else
+    ndb_cond->next= NULL;
+  m_cond_stack= ndb_cond;
+  
+  if (serialize_cond(cond, ndb_cond))
+  {
     DBUG_RETURN(NULL);
-    }
-    else
-    {
-      cond_pop();
-    }
+  }
+  else
+  {
+    cond_pop();
   }
   DBUG_RETURN(cond); 
 }

sql/sql_select.cc

@@ -5406,9 +5406,12 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
             COND *push_cond= 
               make_cond_for_table(cond,current_map,current_map);
             tab->table->file->pushed_cond= NULL;
-	    /* Push condition to handler */
-            if (!tab->table->file->cond_push(push_cond))
-              tab->table->file->pushed_cond= push_cond;
+            if (push_cond)
+            {
+              /* Push condition to handler */
+              if (!tab->table->file->cond_push(push_cond))
+                tab->table->file->pushed_cond= push_cond;
+            }
           }
         }
         else