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103 commits

Author SHA1 Message Date
bell@laptop.sanja.is.com.ua
85f397781b Code cleanup 2003-08-16 13:26:48 +03:00
bell@laptop.sanja.is.com.ua
55094f903f As far as now transformer called after setup_wild() it is impossible to have '*' 2003-08-16 02:04:29 +03:00
bell@sanja.is.com.ua
de705e53f2 fixed bug in used_tables() report of left expression of IN subquery 
fixed number of rows of external field reported to optimizer
added check of choosen key (checked left expression tag)
(SCRUM fix for simple IN optimisation)
 2003-08-07 11:16:02 +03:00
bell@sanja.is.com.ua
1119ec0e6f Merge sanja.is.com.ua:/home/bell/mysql/bk/work-top3-4.1 
into sanja.is.com.ua:/home/bell/mysql/bk/work-simple_in-4.1
 2003-08-05 09:58:00 +03:00
bell@sanja.is.com.ua
659650b4ea merge 2003-08-05 09:56:21 +03:00
bell@sanja.is.com.ua
f59cfa6452 merge 2003-08-01 16:51:54 +03:00
bar@bar.mysql.r18.ru
f8791c3962 Derivation attribute was not processed correctly 
by MAX/MIN in some cases:
SELECT coercibility(max(s1)) from t1;

Subselect collation and derivation was not processed
correctly:

create table a select (select s1 from t1);
select * from t1 where s1 = (select s2 from t1);
 2003-07-30 14:15:25 +05:00
bell@sanja.is.com.ua
bc1546ce31 count HAVING clause elements with select list elements, because agregate function can be present in it (BUG#922) 
removerd unused loop_id
 2003-07-29 13:00:32 +03:00
bell@sanja.is.com.ua
7e34954b5e new optimisation for ref_null (SCRUM) (WL#818) 2003-07-17 19:39:31 +03:00
bell@sanja.is.com.ua
8279740af4 new IN subquery engine added for simple IN with non-primary index but without NULL returning 
(SCRUM) (part of WL#818)
 2003-07-08 00:08:00 +03:00
bell@sanja.is.com.ua
6348e63f62 Optimisation if simple IN subselect with primary index 
(SCRUM) (part of WL#818)
 2003-07-07 18:40:19 +03:00
bell@sanja.is.com.ua
28207ede02 (SCRUM) 
It looks like samll revolution in SELECT_LEX tree, but it was only natural way to solve problem with name resolution of external fields inside subselect which belongs to global order of union
also it have following advantages:
 - removed mess with current_select type conversion
   - type checking/converting
   - a lot of virtual methods
 - fake select for union execution allocated only once (it was allocated for every subselect with union executing)

changes:
fixed bug with outer fields name resolution of subqueries which belong to global ORDER BY clause
remuved select_lex() function, now thd->lex.current_select always have type SELECT_LEX
new SELECT_LEX (fake_select_lex) will be allocated in case of UNION for using in UNION processing
fake_select_lex allocated for union hold global ORDER BY & LIMIT clauses and have linkage equal to GLOBAL_OPTIONS_TYPE 
new description of SELECT_LEX tree

(SCRUM)
 2003-07-03 02:30:52 +03:00
bell@sanja.is.com.ua
2ae8a00b2a Item tree iterator 
fixed dependence of items from reduced subquery
(SCRUM)
 2003-07-02 13:12:18 +03:00
bell@sanja.is.com.ua
5eaaf8e732 after review changes (SCRUM) 
removed outer resolving flag (because of movingtransformation after fix_fields)
 2003-07-02 01:45:22 +03:00
bell@sanja.is.com.ua
e8b1e21615 Merge sanja.is.com.ua:/home/bell/mysql/bk/work-cond_count-4.1 
into sanja.is.com.ua:/home/bell/mysql/bk/work-top2-4.1
 2003-06-26 11:31:13 +03:00
bell@sanja.is.com.ua
2d120d32fa cond_count moved to SELECT_LEX_NODE 
fixed BUG #726
 2003-06-26 11:09:11 +03:00
bell@sanja.is.com.ua
7b77c5a2d3 merged 2003-06-25 23:52:15 +03:00
bell@sanja.is.com.ua
096ae170ae Merge sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1 
into sanja.is.com.ua:/home/bell/mysql/bk/work-item-4.1
 2003-06-19 15:25:41 +03:00
bell@sanja.is.com.ua
fe6175c40d added mem_root switching for subselect if it is necessary 
(bug #518 fixed)
 2003-05-28 16:52:56 +03:00
bell@sanja.is.com.ua
3a30eda921 fixed memory overrun (bug 380) 2003-05-17 10:05:07 +03:00
bell@sanja.is.com.ua
e12cc8ef41 Merge sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1 
into sanja.is.com.ua:/home/bell/mysql/bk/work-top-4.1
 2003-05-14 22:01:56 +03:00
bell@sanja.is.com.ua
1915632163 subselect transformation moved in after-fix_field place 
removed "of is null" if it is possible
  (this cset should be SCRUM related, but not approved as scrum task yet)
 2003-05-14 21:51:33 +03:00
monty@narttu.mysql.fi
51f9879008 Removed compiler warnings 
Fixed memory leak in new filesort code
Optimzed sub selects to use keys with outer references.
Increased max tables in join to 62
 2003-05-06 01:38:38 +03:00
bell@sanja.is.com.ua
3beca2dbb1 fixed bug 185 (constant IN (SELECT field ...) do not return NULL correctly) 2003-04-23 00:01:19 +03:00
bell@sanja.is.com.ua
1a8227d1c1 Merge 2003-03-15 14:16:57 +02:00
bell@sanja.is.com.ua
587196984d Merge sanja.is.com.ua:/home/bell/mysql/mysql-4.1 
into sanja.is.com.ua:/home/bell/mysql/work-leak-4.1
 2003-03-15 11:24:44 +02:00
bell@sanja.is.com.ua
8482e27c81 Merge sanja.is.com.ua:/home/bell/mysql/mysql-4.1 
into sanja.is.com.ua:/home/bell/mysql/work-in-4.1
 2003-03-10 16:38:26 +02:00
bell@sanja.is.com.ua
af06b32a1d fixed crash on non-well-constructed reference 2003-03-10 16:38:06 +02:00
Sinisa@sinisa.nasamreza.org
57ed8b11fd merge fixes 2003-03-06 17:31:22 +02:00
Sinisa@sinisa.nasamreza.org
ffa8a47b6d three bug fixes and major code cleanup 2003-03-06 17:02:10 +02:00
bar@bar.mysql.r18.ru
48cdd97866 Strings which appear without charset context, 
like number-to-string-convertion-result, now 
takes current database character set, instead of
thread character set. This makes it easy to be
SQL99 conformant and 4.0 compatible.

Item->thd_charset() is renamed to Item->default_charset()
as old name doesn't describe its nature anymore.
 2003-03-03 10:53:08 +04:00
bell@sanja.is.com.ua
e98e85315f fix of illegal usage aggregate functions 2003-02-15 00:11:00 +02:00
monty@mashka.mysql.fi
48558055ed Move tmp_table_used to THD 
Optimize depending sub querys
Remove valgrind warnings
 2003-02-10 17:59:16 +02:00
bell@sanja.is.com.ua
62902a3b4b after-review changes (577 SCRUM) 2003-02-02 23:30:01 +02:00
bell@sanja.is.com.ua
e294751c41 fixed bug in determinating uncacheable queries 
new fatal_error interface to assign is_fatal_error and ne.report_error
commant about Item_row
 2003-01-30 22:15:44 +02:00
bell@sanja.is.com.ua
5ed5dac01b cyclic reference test removed, becouse testing of Item::fixed field apply more strict limitation 2003-01-30 14:35:07 +02:00
bell@sanja.is.com.ua
214036a7f6 improving of fields list creation in derived tables and unions 
fixed length of fields created in fubselect
fixed resolving fields of reduced in derived table subselect
 2003-01-29 19:42:39 +02:00
bell@sanja.is.com.ua
0c5b323d0f fixed bugs in temporary tables in subselect implementation (SCRUM) 
merging with switching on static tables optimization (SCRUM)
fixed subselects with uncacheable results
added test for fixed bugs from bugreports
 2003-01-28 14:48:12 +02:00
bell@sanja.is.com.ua
760e22f0bb after merge fix of 577 task (SCRUM, pre commit to be able to merge with static tables optimization fix) 
fixed derived tables with subselect inside
 2003-01-26 21:30:35 +02:00
bell@sanja.is.com.ua
44d8a8cdab merging 2003-01-25 13:19:46 +02:00
bell@sanja.is.com.ua
d56e23f64e fixed subselects with temporary tables (SCRUM) 
fixed memory leacks
 2003-01-25 02:25:52 +02:00
monty@mashka.mysql.fi
25c393a12e Portability fixes (for windows) 
Some changes to the prepared statement protocol to make it easier to use and faster.
 2003-01-21 21:07:59 +02:00
bell@sanja.is.com.ua
945758f0ec post-post-review fix (SCRUM) 2003-01-02 12:24:33 +02:00
bell@sanja.is.com.ua
c7a02249f5 postreviews fix (SCRUM related) 
reordered Item_row class variables to be sorted by memory size
 2002-12-31 18:39:16 +02:00
bell@sanja.is.com.ua
fe9e139056 postreview fix (SCRUM) 
fixed layout
 2002-12-28 01:01:05 +02:00
bell@sanja.is.com.ua
e3ba256491 Merge sanja.is.com.ua:/home/bell/mysql/work-row-4.1 
into sanja.is.com.ua:/home/bell/mysql/work-from-4.1
 2002-12-27 21:36:56 +02:00
bell@sanja.is.com.ua
c5b475e6d7 postreview fix 2002-12-27 21:19:25 +02:00
bell@sanja.is.com.ua
1dd7cb52ae support of subselect without FROM reducing (SCRUM) 
fixed bug of calling setup_fields without correct lex->current_select pointer in mysql_derived
more correct creation of reference in Item_field::fix_field
 2002-12-26 01:28:59 +02:00
bell@sanja.is.com.ua
033b1c3073 more correct argument for translation function (SCRUM related) 
fiexd bug in LIMIT check
 2002-12-25 12:51:08 +02:00
bell@sanja.is.com.ua
e67a0d2b86 check of LIMIT in row IN subquery (SCRUM related) 2002-12-25 12:03:08 +02:00