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Merge with 5.2.

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no_error handling for select (used by INSERT ... SELECT) still needs to be fixed, but I will do that in a separate commit
This commit is contained in:
Michael Widenius
2011-12-11 11:34:44 +02:00
parent 3e2cb35e11 701c0f822a
commit 6d4224a31c
1166 changed files with 25635 additions and 15193 deletions
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38
strings/decimal.c
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@ -12,7 +12,8 @@
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#line 18 "decimal.c"
@ -320,8 +321,8 @@ int decimal_actual_fraction(decimal_t *from)
from - value to convert
to - points to buffer where string representation
should be stored
*to_len - in: size of to buffer
out: length of the actually written string
*to_len - in: size of to buffer (incl. terminating '\0')
out: length of the actually written string (excl. '\0')
fixed_precision - 0 if representation can be variable length and
fixed_decimals will not be checked in this case.
Put number as with fixed point position with this
@ -338,6 +339,7 @@ int decimal2string(const decimal_t *from, char *to, int *to_len,
int fixed_precision, int fixed_decimals,
char filler)
{
/* {intg_len, frac_len} output widths; {intg, frac} places in input */
int len, intg, frac= from->frac, i, intg_len, frac_len, fill;
/* number digits before decimal point */
int fixed_intg= (fixed_precision ?
@ -1421,11 +1423,18 @@ int bin2decimal(const uchar *from, decimal_t *to, int precision, int scale)
buf++;
}
my_afree(d_copy);
/*
No digits? We have read the number zero, of unspecified precision.
Make it a proper zero, with non-zero precision.
*/
if (to->intg == 0 && to->frac == 0)
decimal_make_zero(to);
return error;
err:
my_afree(d_copy);
decimal_make_zero(((decimal_t*) to));
decimal_make_zero(to);
return(E_DEC_BAD_NUM);
}
@ -1485,9 +1494,8 @@ decimal_round(const decimal_t *from, decimal_t *to, int scale,
{
int frac0=scale>0 ? ROUND_UP(scale) : scale/DIG_PER_DEC1,
frac1=ROUND_UP(from->frac), UNINIT_VAR(round_digit),
intg0=ROUND_UP(from->intg), error=E_DEC_OK, len=to->len,
intg1=ROUND_UP(from->intg +
(((intg0 + frac0)>0) && (from->buf[0] == DIG_MAX)));
intg0=ROUND_UP(from->intg), error=E_DEC_OK, len=to->len;
dec1 *buf0=from->buf, *buf1=to->buf, x, y, carry=0;
int first_dig;
@ -1502,6 +1510,12 @@ decimal_round(const decimal_t *from, decimal_t *to, int scale,
default: DBUG_ASSERT(0);
}
/*
For my_decimal we always use len == DECIMAL_BUFF_LENGTH == 9
For internal testing here (ifdef MAIN) we always use len == 100/4
*/
DBUG_ASSERT(from->len == to->len);
if (unlikely(frac0+intg0 > len))
{
frac0=len-intg0;
@ -1515,17 +1529,17 @@ decimal_round(const decimal_t *from, decimal_t *to, int scale,
return E_DEC_OK;
}
if (to != from || intg1>intg0)
if (to != from)
{
dec1 *p0= buf0+intg0+max(frac1, frac0);
dec1 *p1= buf1+intg1+max(frac1, frac0);
dec1 *p1= buf1+intg0+max(frac1, frac0);
DBUG_ASSERT(p0 - buf0 <= len);
DBUG_ASSERT(p1 - buf1 <= len);
while (buf0 < p0)
*(--p1) = *(--p0);
if (unlikely(intg1 > intg0))
to->buf[0]= 0;
intg0= intg1;
buf0=to->buf;
buf1=to->buf;
to->sign=from->sign;