Undo the unfinished patch for MDEV-8359:

Patch b8b1b928ffa9da49588eec4ebe05c864c9847be2 was pushed by mistake

1 files changed, 0 insertions, 45 deletions

diff --git a/sql/opt_range.cc b/sql/opt_range.cc
index 1713936da3e..3ea9f4e5db9 100644
--- a/sql/opt_range.cc
+++ b/sql/opt_range.cc
@@ -7328,51 +7328,6 @@ SEL_TREE *Item_bool_func::get_full_func_mm_tree(RANGE_OPT_PARAM *param,
       }
     }
   }
-  else
-  {
-    THD *thd= current_thd;
-    JOIN *join;
-    COND_EQUAL *cond_equal;
-    // todo: also check that the condition has abort_on_null set.
-    if ((field_item->used_tables() & ~OUTER_REF_TABLE_BIT) &&
-        thd->lex->current_select &&
-        (join= thd->lex->current_select->join) &&
-        (join->outer_join & field_item->used_tables()) &&
-        (cond_equal= field->table->pos_in_table_list->cond_equal) &&
-        field_item->used_tables() & not_null_tables())
-    {
-      // Ok this is a table that's inner w.r.t some outer join
-      // And it has a multiple equality
-      List_iterator<Item_equal> li(cond_equal->current_level);
-      Item_equal *cur_item_eq;
-      while ((cur_item_eq= li++))
-      {
-        // If the multiple equality contains fields from 
-        //   - the table we're doing range analysis for 
-        //   - the table that we have a field from
-        // and field that we have is also there
-        if ((cur_item_eq->used_tables() & (param->current_table | 
-                                           field->table->map)) &&
-            cur_item_eq->contains(field))
-        {
-          // Find fields in the table we're from
-          Item_equal_fields_iterator it(*cur_item_eq);
-          while (it++)
-          {
-            Field *f= it.get_curr_field();
-            if (f->table == param->table)
-            {
-              if (!((ref_tables | f->table->map) & param_comp))
-              {
-                tree= get_func_mm_tree(param, f, value);
-                ftree= !ftree ? tree : tree_and(param, ftree, tree);
-              }
-            }
-          }
-        }
-      }
-    }
-  }
   DBUG_RETURN(ftree);
 }