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37 commits

Author SHA1 Message Date
konstantin@mysql.com
124c4ca346 cleanup: if there is return from if-part, we don't need else statement 2003-12-10 22:26:31 +03:00
konstantin@mysql.com
d04b02b977 followup to fix for bug #1790 BIT_AND() result in GROUP BY different when 
SQL_BIG_RESULT used": now BIT_AND() always returns 18446744073709551615
if no rows were found.
This patch also fixes bug #1972: "BIT_AND() and BIT_OR() still return 
a *signed* 64bit value"
 2003-12-10 15:17:23 +03:00
konstantin@mysql.com
cf192063d1 Post-review fixes for bug #1790 'BIT_AND() result in GROUP BY different when 
SQL_BIG_RESULT used':
- BIT_AND now returns BIGINT UNSIGNED
- in case there were no matching rows BIT_AND returns 18446744073709551615 
(but not NULL), BIT_OR returns 0 (but not NULL). That's how Monty wants it
and how is described in our docs.
 2003-12-02 19:39:51 +03:00
konstantin@mysql.com
c4a9dc4f8b fix for bug #1790: 
"BIT_AND() result in GROUP BY different when SQL_BIG_RESULT used"

return value of BIT_AND changed to BIGINT SIGNED
Also the patch fixes another bug: when temporary table is in use and one of
values in group is NULL, BIT_AND always returns zero.
Fixed it to always skip null values.
 2003-11-21 00:03:04 +03:00
monty@narttu.mysql.fi
fe9dc5e711 Add column names for metadata when running mysql with -T 
Change metadata info so that that MIN() and code MAX() reports that they can return NULL. Bug #324
 2003-08-27 10:26:03 +03:00
monty@narttu.mysql.fi
359846f052 Fixed some varnings from valgrind 
Set min value of max_allowed_packet to 1024
Fixed problem with UNION's without braces and SQL_CALC_FOUND_ROWS, LIMIT #,#
and ORDER BY...LIMIT
 2003-08-20 16:25:44 +03:00
monty@narttu.mysql.fi
f6a43bd567 Fixes for valgrind 
Added optimzation for clustered index
Fixed bug in UPDATE ... ORDER BY
Fixed handling of UPDATE ... LIMIT
 2003-04-23 21:52:16 +03:00
monty@mashka.mysql.fi
3e6c350f64 Fixed bug in SUM() with NULL:s 
Added logging of warnings for failed connections with ssl.
Fixed bug in symbolic link handling on Windows
 2003-04-15 22:04:16 +03:00
monty@mashka.mysql.fi
78e7230e73 Better fix for count(distinct) bug 2003-02-10 17:03:27 +02:00
serg@sergbook.mysql.com
cba78f827c count(distint) on an empty table crash fixed 2003-02-10 12:01:47 +01:00
monty@mashka.mysql.fi
689578a099 Fixes for Netware 
Call pthread_mutex_destroy() on not used mutex.
Changed comments in .h and .c files from // -> /* */
Added detection of mutex on which one didn't call pthread_mutex_destroy()
Fixed bug in create_tmp_field() which causes a memory overrun in queries that uses "ORDER BY constant_expression"
Added optimisation for ORDER BY NULL
 2003-01-28 08:38:28 +02:00
jani@rhols221.adsl.netsonic.fi
7cad1f9313 Added interface for first set of dynamic variables. 2002-06-28 19:30:09 +03:00
monty@mashka.mysql.fi
2aecdd1a91 Big code cleanup/review before 4.0.2 release. 
(All commit emails since 4.0.1 checked)
This had to be done now, before the 4.1 tree changes to much, to make it easy to propagate bug fixes to the 4.1 tree.
 2002-06-11 11:20:31 +03:00
monty@hundin.mysql.fi
b658662ae4 Update copyright 
Fixed memory leak on shutdown (Affects the embedded version & MyODBC)
 2001-12-06 14:10:51 +02:00
monty@hundin.mysql.fi
55a6911bb1 Portability fixes. 2001-10-03 17:02:14 +03:00
monty@tik.mysql.fi
e05bf277d6 Final fixes for INSERT into MERGE tables. 
Move MAX_BLOB_WIDTH to be global
Added full support for unsigned BIGINT
Fixed spelling errors
 2001-09-27 21:45:48 +03:00
monty@hundin.mysql.fi
0d72e5440f Portability fixes 2001-09-15 16:22:34 +03:00
monty@hundin.mysql.fi
59e7c97dab Remove warnings and portability fixes 
New global read lock code
Fixed bug in DATETIME with WHERE optimization
Made UNION code more general.
 2001-08-14 20:33:49 +03:00
monty@tik.mysql.fi
b13d453d50 Fix UNION 
New faster list iterators
Change list code to be simpler and faster
Optimize count(distinct)
New error messages for UNION
Make create_tmp_table more general to be usable by UNION
 2001-08-02 06:29:50 +03:00
serg@serg.mysql.com
0043136882 merged 2001-07-02 21:52:22 +02:00
serg@serg.mysql.com
15b6738474 memory-limited tree 
bulk inserts optimization: caching keys in binary tree
 2001-07-02 21:18:57 +02:00
monty@work.mysql.com
7f68199648 merge 2001-06-21 11:03:54 +02:00
monty@hundin.mysql.fi
72fb81e888 Fixed bug in mysqlcheck when using --fast 
Fixed problem when converting bigint to double.
Fixed bug in count(distinct null)
Fixed bug with empty BDB tables.
 2001-06-19 14:30:12 +03:00
Sinisa@sinisa.nasamreza.org
b37a556889 bk resolve work 2001-06-07 14:25:45 +03:00
Sinisa@sinisa.nasamreza.org
338b51b5a7 These are actually two changesets. One for splitting LEX in two and 
the other for multi-table delete
 2001-06-03 17:07:26 +03:00
sasha@mysql.sashanet.com
11772a2699 fixed bug in count(distinct) 2001-06-01 11:05:00 -06:00
sasha@mysql.sashanet.com
196e995caf cheat when all parts of count(distinct) key are binary 2001-05-29 19:19:18 -06:00
sasha@mysql.sashanet.com
6ecaac01f0 count(distinct) cleanup 2001-05-29 18:53:37 -06:00
sasha@mysql.sashanet.com
8a3f87ab07 fixed bug in count(distinct) 2001-05-24 18:00:52 -06:00
sasha@mysql.sashanet.com
072cca77b2 handle tree overflow in count(distinct) 
test heap table/tree overflow in count(distinct)
 2001-05-24 17:06:53 -06:00
monty@tik.mysql.fi
8685094e15 Don't write rows in MyISAM tables when using count(distinct) 
Don't read MyISAM header when running without locking
 2001-05-23 02:40:46 +03:00
sasha@mysql.sashanet.com
ef27ec42c2 option to free_root() to not my_free() the blocks 
fixed bug/updated count_distinct2 test
changed reset in count distinct to avoid calls to my_free()
 2001-05-12 19:50:51 -06:00
sasha@mysql.sashanet.com
b2977103af fixes/optimizations for count(distinct) 
more extensive testing of count(distinct)
 2001-05-12 17:52:54 -06:00
sasha@mysql.sashanet.com
c706bf40f3 use tree for count(distinct) when possible 2001-05-11 15:07:34 -06:00
monty@donna.mysql.com
ce2260586d Fixed ALTER TABLE on MERGE tables 
Fixed bug in DISTINCT
 2001-01-28 21:35:50 +02:00
monty@donna.mysql.com
aa3580924b RENAME TABLE table_name TO new_table_name ; Faster Alloc 
Small bug fixes
 2000-08-21 03:00:52 +03:00
bk@work.mysql.com
f4c589ff6c Import changeset 2000-07-31 21:29:14 +02:00