item_strfunc.h, item_strfunc.cc, item.cc:
Try to convert a const item into destination
character set. If conversion happens without
data loss, then cache the converted value
and return it during val_str().
Otherwise, if conversion loses data, return
Illeral mix of collations error, as it happened
previously.
ctype_recoding.result, ctype_recoding.test:
Fixing tests accordingly.
"Item_date_add_interval needs to have the int_type member as Public".
As explained in the bug report, this change is is to help http://search.cpan.org/~philips/DBIx-MyParse-0.20/
So please keep those members public.
ctype_utf8.result, ctype_utf8.test:
Adding test case.
item_strfunc.cc:
item_strfunc.h:
Moving the well formed checking code into a method,
to reuse in several Item_func_xxx. Reusing the new
method in Item_func_char and Item_func_charset_conv.
select distinct char(column) fails with utf8
ctype_utf8.result, ctype_utf8.test:
Adding test case
sql_yacc.yy:
Adding new syntax.
item_strfunc.h:
Fixing wrong max_length calculation.
Also, adding CHAR(x USING charset),
for easier migrating from 4.1 to 5.0,
according to Monty's suggestion.
New syntax: CHAR(x USING charset)
Adding test case.
sql_yacc.yy:
New syntax: CHAR(x USING charset)
Adding new parser rule.
item_strfunc.h:
New syntax: CHAR(x USING charset)
Adding a new constructor.
- CHAR() now returns binary string as default
- CHAR(X*65536+Y*256+Z) is now equal to CHAR(X,Y,Z) independent of the character set for CHAR()
- Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
(Some old systems returns ETIME and it's safer to test for both values
than to try to write a wrapper for each old system)
- Fixed new introduced bug in NOT BETWEEN X and X
- Ensure we call commit_by_xid or rollback_by_xid for all engines, even if one engine has failed
- Use octet2hex() for all conversion of string to hex
- Simplify and optimize code
UPPER/LOWER now can return a string with different length.
mi_test1.c:
Adding new arguments.
Many files:
Changeing caseup/casedn to return a result with different
length than argument.
sql_string.h:
Removing unused method,
mysql_priv.h:
Removing unused method
- Set max_length of Item_func_uuid to max_length*system_charset_info->mbmaxlen
Note! Item_func_uuid should be set to use 'ascii' charset when hex(), format(), md5() etc will use 'ascii'
fixing test results accordingly.
func_system.test:
New test that illegal mix of collations does not happen anymore.
item_strfunc.h:
safe_charset_converter() was added for system constants.
item_strfunc.cc:
safe_charset_converter() was added for system constants.
item_func.cc, item.h, item.cc:
Bug#8291: Illegal collation mix with USER() function.
After discussion with PeterG and Serge, a new coercibility
level for "system constants" was introduced, between
COERRIBLE and IMPLICIT. Thus:
SELECT col1 = USER() FROM t1; - is done according to col1 collation.
SELECT 'string' = USER(); - is done according to USER() collation.
At the same time, "nagg" and "strong" members were removed as unused.
item_create.cc:
Version is a system constant too.
