Force need_tmp to true if we have window functions.

MariaDB · Feb 14, 2016 · 9a2d895 · 9a2d895
1 parent cb83e6c
commit 9a2d895
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
@@ -1819,6 +1819,10 @@ JOIN::optimize_inner()
   }
 
   need_tmp= test_if_need_tmp_table();
+  //TODO this could probably go in test_if_need_tmp_table.
+  if (this->select_lex->window_specs.elements > 0) {
+    need_tmp= TRUE;
+  }
 
   /*
     If the hint FORCE INDEX FOR ORDER BY/GROUP BY is used for the table