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129 commits

Author SHA1 Message Date
bell@sanja.is.com.ua
a7bdd19707 subqueries made printable 
new EXPLAIN parameter to show real query as it was interpreted
(SCRUM) (WL#1274)
 2003-10-16 15:54:47 +03:00
bell@laptop.sanja.is.com.ua
7921834334 Merge laptop.sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1 
into laptop.sanja.is.com.ua:/home/bell/mysql/bk/work-constructors-4.1
 2003-10-07 17:42:59 +03:00
bell@laptop.sanja.is.com.ua
862ff0ed1c fixed error detection 2003-10-07 16:26:46 +03:00
bell@laptop.sanja.is.com.ua
efae22f617 merge 2003-10-07 16:22:48 +03:00
bell@laptop.sanja.is.com.ua
09c139ac37 after merge fix 2003-10-07 13:31:44 +03:00
monty@narttu.mysql.fi
b31a79df3e merge 2003-10-07 11:24:38 +03:00
bell@laptop.sanja.is.com.ua
d5a7a6ec34 merge 2003-10-07 08:51:09 +03:00
bell@laptop.sanja.is.com.ua
dfb7ca08dc merge 2003-10-07 07:51:14 +03:00
bell@laptop.sanja.is.com.ua
18bb43671d Merge laptop.sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.1 
into laptop.sanja.is.com.ua:/home/bell/mysql/bk/work-all_any_group-4.1
 2003-10-07 01:31:16 +03:00
bell@laptop.sanja.is.com.ua
ccaeb61f8b after merge fix 2003-10-07 01:28:15 +03:00
monty@narttu.mysql.fi
8c0b7d5d97 Merge bk-internal.mysql.com:/home/bk/mysql-4.1 
into narttu.mysql.fi:/my/mysql-4.1
 2003-10-07 00:34:43 +03:00
bell@laptop.sanja.is.com.ua
e527f268d5 fixed error names 2003-10-06 22:35:05 +03:00
bell@laptop.sanja.is.com.ua
e1b53fdd42 Merge 2003-10-06 20:55:06 +03:00
bell@laptop.sanja.is.com.ua
9db4024b8d thd pointer storing moved to fix_fields() (WL#1254) (SCRUM) 2003-10-02 22:19:41 +03:00
monty@narttu.mysql.fi
6905d7963e Don't print warnings about 'setrlimit' if --warnings is not given 
Code review/cleanup of sub subselect_uniquesubquery_engine
 2003-09-29 12:39:38 +03:00
bell@laptop.sanja.is.com.ua
ddd019cc79 code cleanup: removed unused constructors and methods 2003-09-20 18:31:56 +03:00
bell@sanja.is.com.ua
46b8c3ea8b renamed join_types (as was suggested by Peter Gulutzan) 2003-09-14 09:40:57 +03:00
bell@sanja.is.com.ua
813d81c726 removing additional IN subquery condition 
fixed IN optimisation bug
 2003-09-08 21:58:09 +03:00
bell@sanja.is.com.ua
a02094ef10 fixed row union processing 2003-09-07 20:35:10 +03:00
bell@laptop.sanja.is.com.ua
ec8d6d05de enum renamed (asked for compilation under windows) 2003-08-28 13:21:30 +03:00
bell@laptop.sanja.is.com.ua
f77f46d8eb Merge laptop.sanja.is.com.ua:/home/bell/mysql/bk/work-all_any-4.1 
into laptop.sanja.is.com.ua:/home/bell/mysql/bk/work-all_any_group-4.1
 2003-08-23 13:33:02 +03:00
bell@laptop.sanja.is.com.ua
c514948a30 merge 2003-08-20 22:17:57 +03:00
bell@laptop.sanja.is.com.ua
30913419ec after merge changing 
uninitialized value fixed
 2003-08-20 17:35:12 +03:00
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
6ac8e9b93c optimisation of independent ALL/ANY with aggregate function (WL#1115) (SCRUM) 2003-08-12 12:38:03 +03:00
bell@sanja.is.com.ua
cbb3a78d8d merge 2003-08-11 12:00:33 +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
ec74bb8d76 independent ALL/ANY subselect on top of WHERE clause (subselect without GROUP BY or aggregate functions) optimisation 
(SCRUM) (WL#1086)
 2003-07-24 15:26:21 +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