decimal->ulong conversion fixed to assign max possible ULONG if decimal
is bigger
Item_func_unsigned now handles DECIMAL parameter separately as we can't
rely on decimal::val_int result here.
LIKE craashed with a pattern having letters in the range 128..255
(e.g. A WITH ACUTE or C WITH CARON) because of wrong cast from
signed char to unsigned int.
The problem was that when converting a string to an exact number,
rounding didn't work, because conversion didn't understand
approximate numbers notation.
Fix: a new function for string-to-number conversion was implemented,
which is aware of approxinate number notation (with decimal point
and exponent, e.g. -19.55e-1)
Adding decimal "digits" in multiplication resulted in signed overflow and
producing wrong results.
Fixed by using large enough buffers and intermediary result types :
dec2 (currently longlong) to hold result of adding decimal "digits"
(currently int32).
The problem was in redundant calls to strlen() in string functions,
where we may then return after checking only the small number of characters.
No test case is provided since it's a performance fix.
The length of the prefix of the pattern string in the LIKE predicate that
determined the index range to be scanned was calculated incorrectly for
multi-byte character sets.
As a result of this in 4. 1 the the scanned range was wider then necessary
if the prefix contained not only one-byte characters.
In 5.0 additionally it caused missing some rows from the result set.
"Add line for non-executable stack in .s files"
Fix so that configure will use "--noexecstack" for assembler if gcc supports
option and compiled C doesn't need executable stack.
Bug#17667: An attacker has the opportunity to bypass query logging.
This adds a new, local-only printf format specifier to our *printf functions
that allows us to print known-size buffers that must not be interpreted as
NUL-terminated "strings."
It uses this format-specifier to print to the log, thus fixing this
problem.
Backporting a 5.0 change:
MAX_BUF was too small for Index.xml
Changeing MAX_BUF and adding assert to easier
catch the same problem in the future.
ctype-extra.c:
Regenerating ctype-extra.c with the fixed conf_to_src.
Buffer was too small to load Index.xml.
So some charsets were not gerenrated.
Making the buffer bigger, and adding an DBUG_ASSERT,
to easier catch the problem in the future.
ctype-extra.c:
Additional charsets were generated.
