00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*- 00002 * vim:expandtab:shiftwidth=2:tabstop=2:smarttab: 00003 * 00004 * Copyright (C) 2008 Sun Microsystems, Inc. 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; version 2 of the License. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program; if not, write to the Free Software 00017 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 */ 00019 00020 #pragma once 00021 00022 #include <drizzled/field.h> 00023 00024 namespace drizzled 00025 { 00026 00027 class Item; 00028 00029 /* Order clause list element */ 00030 00031 /* Order clause list element */ 00032 class Order{ 00033 public: 00034 struct Order *next; 00035 Item **item; /* Point at item in select fields */ 00036 Item *item_ptr; /* Storage for initial item */ 00037 Item **item_copy; /* For SPs; the original item ptr */ 00038 int counter; /* position in SELECT list, correct 00039 only if counter_used is true*/ 00040 bool asc; /* true if ascending */ 00041 bool free_me; /* true if item isn't shared */ 00042 bool in_field_list; /* true if in select field list */ 00043 bool counter_used; /* parameter was counter of columns */ 00044 Field *field; /* If tmp-table group */ 00045 char *buff; /* If tmp-table group */ 00046 table_map used, depend_map; 00047 00048 Order(): 00049 next(NULL), 00050 item(NULL), 00051 item_ptr(NULL), 00052 item_copy(NULL), 00053 counter(0), 00054 asc(false), 00055 free_me(false), 00056 in_field_list(false), 00057 counter_used(false), 00058 field(NULL), 00059 buff(NULL), 00060 used(0), 00061 depend_map(0) 00062 {} 00063 }; 00064 } /* namespace drizzled */ 00065