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Merge mhansson@bk-internal:/home/bk/mysql-5.0-opt

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into  linux-st28.site:/home/martin/mysql/src/bug33143/my50-bug33143-again-pushee


sql/item_func.cc:
  Auto merged
mysql-test/r/type_decimal.result:
  Bug#33143: Manual merge
mysql-test/t/type_decimal.test:
  Bug#33143: Manual merge
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unknown
2008-01-17 18:15:53 +01:00
parent ec25326975 f9440588f5
commit a22d1bf622
4 changed files with 125 additions and 9 deletions
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16
strings/decimal.c
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@ -1595,9 +1595,21 @@ decimal_round(decimal_t *from, decimal_t *to, int scale,
x+=10;
*buf1=powers10[pos]*(x-y);
}
if (frac0 < 0)
/*
In case we're rounding e.g. 1.5e9 to 2.0e9, the decimal_digit_t's inside
the buffer are as follows.
Before <1, 5e8>
After <2, 5e8>
Hence we need to set the 2nd field to 0.
The same holds if we round 1.5e-9 to 2e-9.
*/
if (frac0 < frac1)
{
dec1 *end=to->buf+intg0, *buf=buf1+1;
dec1 *buf= to->buf + ((scale == 0 && intg0 == 0) ? 1 : intg0 + frac0);
dec1 *end= to->buf + len;
while (buf < end)
*buf++=0;
}