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authorDavi Arnaut <davi.arnaut@oracle.com>2010-07-23 17:14:35 -0300
committerDavi Arnaut <davi.arnaut@oracle.com>2010-07-23 17:14:35 -0300
commit7a221fc9a30888fc30bd0ef79445829896572d97 (patch)
tree34993c1eeb34970e4c3ffef7f0a41b6e14095d89 /sql/sql_olap.cc
parente7dd11f0bef0e31fad7063ac8b2c6df3bb575436 (diff)
downloadmariadb-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.cc188
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 */