less default_charset_info

sql/filesort.cc

@@ -470,10 +470,11 @@ static void make_sortkey(register SORTPARAM *param,
       switch (sort_field->result_type) {
       case STRING_RESULT:
 	{
+          CHARSET_INFO *cs=item->charset();
 	  if (item->maybe_null)
 	    *to++=1;
 	  /* All item->str() to use some extra byte for end null.. */
-	  String tmp((char*) to,sort_field->length+4,default_charset_info);
+	  String tmp((char*) to,sort_field->length+4,cs);
 	  String *res=item->val_str(&tmp);
 	  if (!res)
 	  {
@@ -488,7 +489,6 @@ static void make_sortkey(register SORTPARAM *param,
 	    break;
 	  }
 	  length=res->length();
-	  CHARSET_INFO *cs=res->charset();
 	  int diff=(int) (sort_field->length-length);
 	  if (diff < 0)
 	  {

sql/key.cc

@@ -192,8 +192,7 @@ int key_cmp(TABLE *table,const byte *key,uint idx,uint key_length)
       if (!(key_part->key_type & (FIELDFLAG_NUMBER+FIELDFLAG_BINARY+
 				  FIELDFLAG_PACK)))
       {
-        /* BAR TODO: I'm not sure this should be system_charset_info */
-	if (my_strnncoll(system_charset_info,
+	if (my_strnncoll(key_part->field->charset(),
 			 (const uchar*) key, length,
 		         (const uchar*) table->record[0]+key_part->offset,length))
 	  return 1;

sql/opt_range.cc

@@ -929,7 +929,7 @@ get_mm_leaf(PARAM *param, Field *field, KEY_PART *key_part,
   {
     bool like_error;
     char buff1[MAX_FIELD_WIDTH],*min_str,*max_str;
-    String tmp(buff1,sizeof(buff1),default_charset_info),*res;
+    String tmp(buff1,sizeof(buff1),value->charset()),*res;
     uint length,offset,min_length,max_length;
 
     if (!field->optimize_range(param->real_keynr[key_part->key]))
@@ -2793,7 +2793,7 @@ static void
 print_key(KEY_PART *key_part,const char *key,uint used_length)
 {
   char buff[1024];
-  String tmp(buff,sizeof(buff),default_charset_info);
+  String tmp(buff,sizeof(buff),NULL);
 
   for (uint length=0;
        length < used_length ;

sql/sql_delete.cc

@@ -536,7 +536,7 @@ int mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok)
     table->file->info(HA_STATUS_AUTO | HA_STATUS_NO_LOCK);
     bzero((char*) &create_info,sizeof(create_info));
     create_info.auto_increment_value= table->file->auto_increment_value;
-    create_info.table_charset=default_charset_info;
+    create_info.table_charset=table->table_charset;
 
     db_type table_type=table->db_type;
     strmov(path,table->path);
@@ -580,7 +580,7 @@ int mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok)
   }
 
   bzero((char*) &create_info,sizeof(create_info));
-  create_info.table_charset=default_charset_info;
+  create_info.table_charset=table_list->table->table_charset;
 
   *fn_ext(path)=0;				// Remove the .frm extension
   error= ha_create_table(path,&create_info,1) ? -1 : 0;