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14 commits

Author SHA1 Message Date
bar@mysql.com
c51d7acfcc 1. When mixing NULL to a character string, 
the result takes its charset/collation
attributes from the character string,
e.g.  SELECT func(NULL, _latin2'string')
now returns a latin2 result. This is
done by introducing a new derivation
(aka coercibility) level DERIVATION_IGNORABLE,
which is used with Item_null.
2. 'Pure' NULL is now BINARY(0), not CHAR(0).
I.e. NULL is now more typeless.
 2004-11-10 14:05:28 +04:00
serg@serg.mylan
d0afecff15 merged 2004-08-22 12:47:11 +02:00
igor@rurik.mysql.com
4b760fcb94 null.test, null.result: 
Added test case for bug #4256.
join_outer.result:
  Fixed bug #4256.
item_cmpfunc.h:
  Fixed inconsistency of values of used_tables_cache and
  const_item_cache for Item_func_isnull objects.
  This inconsistency caused bug #4256.
 2004-08-20 23:48:30 -07:00
Sinisa@sinisa.nasamreza.org
ba029973fa null.result, null.test: 
Fix for a bug #2219, regarding a bad cast to integer from NULL
item_func.h:
  Fix for a bug #2219, regarding a bad cast to integer from NULL
sql_parse.cc:
  A fix for a bug #2207, with mysql server haning on option setting
 2004-01-09 22:28:29 +02:00
antony@ltantony.rdg.cyberkinetica.homeunix.net
fcf96dbb18 WorkLog#1323 
Deprecate the use of TYPE=... Preferred syntax is ENGINE=
 2003-12-10 04:31:42 +00:00
igor@rurik.mysql.com
dcbbbe6b94 join_outer.result, null.result, null.test, item_cmpfunc.h: 
Fixed inconsistency of values of used_tables_cache and
  const_item_cache for Item_func_isnull objects (bug #1990).
 2003-12-01 13:59:09 -08:00
bell@sanja.is.com.ua
33346e26af added code covarage for functions convert(), nullif(), crc32(), is_used_lock(), char_lengtrh(), bit_xor() 
added string length for more speed
made code covarage for print() method of Item
fixed printability of some items (SCRUM) (WL#1274)
 2003-10-30 12:57:26 +02:00
monty@mashka.mysql.fi
76f146a175 Merge with 4.0.9 2003-01-18 03:13:37 +02:00
monty@mashka.mysql.fi
8dd439e751 Guard against compiling without -fno-exceptions 
Allocate bigger default thread stack because of problems with glibc
Fixed bug in UPDATE ... not_null_field=expression_that_returns_null
Fixed bug in replication when using auto_increment and LOAD DATA INFILE
 2003-01-14 11:27:26 +02:00
monty@mashka.mysql.fi
1f6ecc0cd3 Changed mysql-test to print warnings for not existing table to DROP TABLE 
Cleaned up test; Removed wrong DROP TABLE commands and use standard table and database names.
changed store_warning() -> push_warning_print()
 2003-01-06 01:48:59 +02:00
monty@hundin.mysql.fi
8830eb4aa9 Change of internal key_field=NULL handling to avoid error messages. 
Optimized SELECT DISTINCT ... ORDER BY ... LIMIT
Fixed reference to uninitalized variable
 2002-12-03 13:08:25 +02:00
monty@hundin.mysql.fi
4d10a0cb7e Add support for NULL=NULL in keys (Used in GROUP BY optimization) 
Add ISAM to Windows version
Fix of test results
Fixes for NULL keys in HEAP tables.
 2002-01-16 00:42:52 +02:00
monty@hundin.mysql.fi
6ee6fbf700 Don't use signal() on windows. 
Added missing InnoDB variables to SHOW VARIABLES.
Fixed bug when doing WHERE 'column_name=NULL' on an indexed column that had NULL values.
Fixed bug when doing 'LEFT JOIN ...  ON (column_name = constant) WHERE column_name = constant'
 2001-10-19 22:10:54 +03:00
monty@donna.mysql.com
c0f40d14cc Added support for hex strings to mysqlimport 
A lot of new tests to mysqltest
Fixed bug with BDB tables and autocommit
 2000-12-28 03:56:38 +02:00