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author | Davi Arnaut <davi.arnaut@oracle.com> | 2010-07-23 17:14:35 -0300 |
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committer | Davi Arnaut <davi.arnaut@oracle.com> | 2010-07-23 17:14:35 -0300 |
commit | 7a221fc9a30888fc30bd0ef79445829896572d97 (patch) | |
tree | 34993c1eeb34970e4c3ffef7f0a41b6e14095d89 /sql/sql_olap.cc | |
parent | e7dd11f0bef0e31fad7063ac8b2c6df3bb575436 (diff) | |
download | mariadb-git-7a221fc9a30888fc30bd0ef79445829896572d97.tar.gz |
WL#5498: Remove dead and unused source code
Remove unused source code and associated paraphernalia.
Diffstat (limited to 'sql/sql_olap.cc')
-rw-r--r-- | sql/sql_olap.cc | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/sql/sql_olap.cc b/sql/sql_olap.cc deleted file mode 100644 index b957d1e9be4..00000000000 --- a/sql/sql_olap.cc +++ /dev/null @@ -1,188 +0,0 @@ -/* Copyright (C) 2000-2006 MySQL AB - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - - -/* - OLAP implementation by Sinisa Milivojevic <sinisa@mysql.com> - Inspired by code submitted by Srilakshmi <lakshmi@gdit.iiit.net> - - The ROLLUP code in this file has to be complitely rewritten as it's - not good enough to satisfy the goals of MySQL. - - In 4.1 we will replace this with a working, superior implementation - of ROLLUP. -*/ - -#ifdef DISABLED_UNTIL_REWRITTEN_IN_4_1 - -#ifdef USE_PRAGMA_IMPLEMENTATION -#pragma implementation // gcc: Class implementation -#endif - -#include "sql_priv.h" -#include "unireg.h" -#include "sql_select.h" - - -/**************************************************************************** - Functions that recursively actually creates new SELECT's - Returns 0 if OK, 1 if error, -1 if error already printed to client -****************************************************************************/ - - -static int make_new_olap_select(LEX *lex, SELECT_LEX *select_lex, List<Item> new_fields) -{ - THD *thd=current_thd; - Item *item, *new_item; - Item_null *constant= new Item_null("ALL"); - - SELECT_LEX *new_select = (SELECT_LEX *) thd->memdup((char*) select_lex, sizeof(*select_lex)); - if (!new_select) - return 1; - lex->last_selects->next=new_select; - new_select->linkage=OLAP_TYPE; - new_select->olap=NON_EXISTING_ONE; - new_select->group_list.elements=0; - new_select->group_list.first=(uchar *)0; - new_select->group_list.next=(uchar **)&new_select->group_list.first; - List<Item> privlist; - - List_iterator<Item> list_it(select_lex->item_list); - List_iterator<Item> new_it(new_fields); - - while ((item=list_it++)) - { - bool not_found= TRUE; - if (item->type()==Item::FIELD_ITEM) - { - Item_field *iif = (Item_field *)item; - new_it.rewind(); - while ((new_item=new_it++)) - { - if (new_item->type()==Item::FIELD_ITEM && - !strcmp(((Item_field*)new_item)->table_name,iif->table_name) && - !strcmp(((Item_field*)new_item)->field_name,iif->field_name)) - { - not_found= 0; - ((Item_field*)new_item)->db_name=iif->db_name; - Item_field *new_one=new Item_field(&select_lex->context, - iif->db_name, iif->table_name, iif->field_name); - privlist.push_back(new_one); - if (add_to_list(new_select->group_list,new_one,1)) - return 1; - break; - } - } - } - if (not_found) - { - if (item->type() == Item::FIELD_ITEM) - privlist.push_back(constant); - else - privlist.push_back((Item*)thd->memdup((char *)item,item->size_of())); - } - } - new_select->item_list=privlist; - - lex->last_selects = new_select; - return 0; -} - -/**************************************************************************** - Functions that recursively creates combinations of queries for OLAP - Returns 0 if OK, 1 if error, -1 if error already printed to client -****************************************************************************/ - -static int olap_combos(List<Item> old_fields, List<Item> new_fields, Item *item, LEX *lex, - SELECT_LEX *select_lex, int position, int selection, int num_fields, - int num_new_fields) -{ - int sl_return = 0; - if (position == num_new_fields) - { - if (item) - new_fields.push_front(item); - sl_return = make_new_olap_select(lex, select_lex, new_fields); - } - else - { - if (item) - new_fields.push_front(item); - while ((num_fields - num_new_fields >= selection - position) && !sl_return) - { - item = old_fields.pop(); - sl_return = olap_combos(old_fields, new_fields, item, lex, select_lex, position+1, ++selection, num_fields, num_new_fields); - } - } - return sl_return; -} - - -/**************************************************************************** - Top level function for converting OLAP clauses to multiple selects - This is also a place where clauses treatment depends on OLAP type - Returns 0 if OK, 1 if error, -1 if error already printed to client -****************************************************************************/ - -int handle_olaps(LEX *lex, SELECT_LEX *select_lex) -{ - List<Item> item_list_copy, new_item_list; - item_list_copy.empty(); - new_item_list.empty(); - int count=select_lex->group_list.elements; - int sl_return=0; - - - lex->last_selects=select_lex; - - for (ORDER *order= select_lex->group_list.first ; order ; order=order->next) - item_list_copy.push_back(*(order->item)); - - List<Item> all_fields(select_lex->item_list); - - - if (setup_tables(lex->thd, &select_lex->context, &select_lex->top_join_list, - select_lex->table_list.first - &select_lex->leaf_tables, FALSE) || - setup_fields(lex->thd, 0, select_lex->item_list, MARK_COLUMNS_READ, - &all_fields,1) || - setup_fields(lex->thd, 0, item_list_copy, MARK_COLUMNS_READ, - &all_fields, 1)) - return -1; - - if (select_lex->olap == CUBE_TYPE) - { - for ( int i=count-1; i>=0 && !sl_return; i--) - sl_return=olap_combos(item_list_copy, new_item_list, (Item *)0, lex, select_lex, 0, 0, count, i); - } - else if (select_lex->olap == ROLLUP_TYPE) - { - for ( int i=count-1; i>=0 && !sl_return; i--) - { - Item *item; - item_list_copy.pop(); - List_iterator<Item> it(item_list_copy); - new_item_list.empty(); - while ((item = it++)) - new_item_list.push_front(item); - sl_return=make_new_olap_select(lex, select_lex, new_item_list); - } - } - else - sl_return=1; // impossible - return sl_return; -} - -#endif /* DISABLED_UNTIL_REWRITTEN_IN_4_1 */ |