maria-developers team mailing list archive

[Sergey Petrunya <psergey@xxxxxxxxxxxx>]

At file:///home/psergey/dev/maria-5.1-table-elim-r11/

------------------------------------------------------------
revno: 2741
revision-id: psergey@xxxxxxxxxxxx-20090821133606-2t7hib7wuctqller
parent: psergey@xxxxxxxxxxxx-20090821074822-6x2gv01r9ltt2bhc
committer: Sergey Petrunya <psergey@xxxxxxxxxxxx>
branch nick: maria-5.1-table-elim-r11
timestamp: Fri 2009-08-21 15:36:06 +0200
message:
  MWL#17: Table elimination
  - Remove a piece of code that's not needed anymore.
=== modified file 'sql/opt_table_elimination.cc'
--- a/sql/opt_table_elimination.cc	2009-08-21 07:48:22 +0000
+++ b/sql/opt_table_elimination.cc	2009-08-21 13:36:06 +0000
@@ -505,39 +505,6 @@
 
 
 /*
-   The only requirement of this function is to order fields in some
-   deterministic way.
-*/
-
-int cmp_equal_fields(Item_field *field1, Item_field *field2, void *arg)
-{
-  int cmp= 0;
-  bool outer_ref= 0;
-  if (field2->used_tables() & OUTER_REF_TABLE_BIT)
-  {  
-    outer_ref= 1;
-    cmp= -1;
-  }
-  if (field2->used_tables() & OUTER_REF_TABLE_BIT)
-  {
-    outer_ref= 1;
-    cmp++;
-  }
-  if (outer_ref)
-    return cmp;
-  cmp= (int)field2->field->table->tablenr - 
-       (int)field1->field->table->tablenr;
-  if (cmp)
-    return cmp < 0 ? -1 : 1;
-  cmp= (int)field2->field->field_index - 
-       (int)field1->field->field_index;
-
-    return cmp < 0 ? -1 : (cmp ? 1 : 0);
-  
-}
-
-
-/*
   Perform an OR operation on two (adjacent) Equality_module arrays.
 
   SYNOPSIS