Merge bodhi.local:/opt/local/work/tmp_merge

into  bodhi.local:/opt/local/work/mysql-5.0-runtime-merge-41

sql/sql_lex.cc

@@ -126,6 +126,7 @@ void lex_start(THD *thd, uchar *buf,uint length)
   lex->param_list.empty();
   lex->view_list.empty();
   lex->prepared_stmt_params.empty();
+  lex->auxilliary_table_list.empty();
   lex->unit.next= lex->unit.master=
     lex->unit.link_next= lex->unit.return_to= 0;
   lex->unit.prev= lex->unit.link_prev= 0;

sql/sql_prepare.cc

@@ -2128,28 +2128,21 @@ void reinit_stmt_before_use(THD *thd, LEX *lex)
     they have their own table list).
   */
   for (TABLE_LIST *tables= lex->query_tables;
-         tables;
-         tables= tables->next_global)
+       tables;
+       tables= tables->next_global)
   {
-    /*
-      Reset old pointers to TABLEs: they are not valid since the tables
-      were closed in the end of previous prepare or execute call.
-    */
-    tables->table= 0;
-    /* Reset is_schema_table_processed value(needed for I_S tables */
-    tables->is_schema_table_processed= FALSE;
-
-    TABLE_LIST *embedded; /* The table at the current level of nesting. */
-    TABLE_LIST *embedding= tables; /* The parent nested table reference. */
-    do
-    {
-      embedded= embedding;
-      if (embedded->prep_on_expr)
-        embedded->on_expr= embedded->prep_on_expr->copy_andor_structure(thd);
-      embedding= embedded->embedding;
-    }
-    while (embedding &&
-           embedding->nested_join->join_list.head() == embedded);
+    tables->reinit_before_use(thd);
+  }
+  /*
+    Cleanup of the special case of DELETE t1, t2 FROM t1, t2, t3 ...
+    (multi-delete).  We do a full clean up, although at the moment all we
+    need to clean in the tables of MULTI-DELETE list is 'table' member.
+  */
+  for (TABLE_LIST *tables= (TABLE_LIST*) lex->auxilliary_table_list.first;
+       tables;
+       tables= tables->next)
+  {
+    tables->reinit_before_use(thd);
   }
   lex->current_select= &lex->select_lex;
 

sql/table.cc

@@ -2985,6 +2985,23 @@ Field_iterator_table_ref::get_natural_column_ref()
   return nj_col;
 }
 
+/*
+  Cleanup this table for re-execution.
+
+  SYNOPSIS
+    st_table_list::reinit_before_use()
+*/
+
+void st_table_list::reinit_before_use(THD * /* thd */)
+{
+  /*
+    Reset old pointers to TABLEs: they are not valid since the tables
+    were closed in the end of previous prepare or execute call.
+  */
+  table= 0;
+  table_list= 0;
+}
+
 
 /*****************************************************************************
 ** Instansiate templates

sql/table.h

@@ -672,6 +672,11 @@ typedef struct st_table_list
 private:
   bool prep_check_option(THD *thd, uint8 check_opt_type);
   bool prep_where(THD *thd, Item **conds, bool no_where_clause);
+  /*
+    Cleanup for re-execution in a prepared statement or a stored
+    procedure.
+  */
+  void reinit_before_use(THD *thd);
 } TABLE_LIST;
 
 class Item;