cleanup: comments and whitespaces

sql/sql_class.h

@@ -4990,7 +4990,7 @@ class select_result :public select_result_sink
   virtual uint field_count(List<Item> &fields) const
   { return fields.elements; }
   virtual bool send_result_set_metadata(List<Item> &list, uint flags)=0;
-  virtual bool initialize_tables (JOIN *join=0) { return 0; }
+  virtual bool initialize_tables (JOIN *join) { return 0; }
   virtual bool send_eof()=0;
   /**
     Check if this query returns a result set and therefore is allowed in
@@ -5542,7 +5542,7 @@ class select_union_direct :public select_unit
   bool postponed_prepare(List<Item> &types);
   bool send_result_set_metadata(List<Item> &list, uint flags);
   int send_data(List<Item> &items);
-  bool initialize_tables (JOIN *join= NULL);
+  bool initialize_tables (JOIN *join);
   bool send_eof();
   bool flush() { return false; }
   bool check_simple_select() const

sql/sql_select.cc

@@ -3002,8 +3002,7 @@ bool JOIN::make_aggr_tables_info()
         curr_all_fields->elements - curr_fields_list->elements;
       ORDER *dummy= NULL; //TODO can use table->group here also
 
-      if (create_postjoin_aggr_table(curr_tab,
-                                     curr_all_fields, dummy, true,
+      if (create_postjoin_aggr_table(curr_tab, curr_all_fields, dummy, true,
                                      distinct, keep_row_order))
 	DBUG_RETURN(true);
 
@@ -3274,8 +3273,8 @@ JOIN::create_postjoin_aggr_table(JOIN_TAB *tab, List<Item> *table_fields,
   */
   ha_rows table_rows_limit= ((order == NULL || skip_sort_order) &&
                               !table_group &&
-                              !select_lex->with_sum_func) ?
-                              select_limit : HA_POS_ERROR;
+                              !select_lex->with_sum_func) ? select_limit
+                                                          : HA_POS_ERROR;
 
   if (!(tab->tmp_table_param= new TMP_TABLE_PARAM(tmp_table_param)))
     DBUG_RETURN(true);
@@ -9373,7 +9372,7 @@ bool JOIN::get_best_combination()
   */ 
   uint aggr_tables= (group_list ? 1 : 0) +
                     (select_distinct ?
-                     (tmp_table_param. using_outer_summary_function ? 2 : 1) : 0) +
+                     (tmp_table_param.using_outer_summary_function ? 2 : 1) : 0) +
                     (order ? 1 : 0) +
        (select_options & (SELECT_BIG_RESULT | OPTION_BUFFER_RESULT) ? 1 : 0) ;
   
@@ -16628,8 +16627,6 @@ static void create_tmp_field_from_item_finalize(THD *thd,
                                update the record in the original table.
                                If modify_item is 0 then fill_record() will
                                update the temporary table
-  @param convert_blob_length   If >0 create a varstring(convert_blob_length)
-                               field instead of blob.
 
   @retval
     0  on error
@@ -16947,6 +16944,10 @@ setup_tmp_table_column_bitmaps(TABLE *table, uchar *bitmaps)
                               temporary table
   @param table_alias          possible name of the temporary table that can
                               be used for name resolving; can be "".
+  @param do_not_open          only create the TABLE object, do not
+                              open the table in the engine
+  @param keep_row_order       rows need to be read in the order they were
+                              inserted, the engine should preserve this order
 */
 
 TABLE *

sql/sql_select.h

@@ -470,7 +470,7 @@ typedef struct st_join_table {
   Window_funcs_computation* window_funcs_step;
 
   /**
-    List of topmost expressions in the select list. The *next* JOIN TAB
+    List of topmost expressions in the select list. The *next* JOIN_TAB
     in the plan should use it to obtain correct values. Same applicable to
     all_fields. These lists are needed because after tmp tables functions
     will be turned to fields. These variables are pointing to