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MDEV-16991 Rounding vs truncation for TIME, DATETIME, TIMESTAMP

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This commit is contained in:
Alexander Barkov
2018-11-23 19:04:42 +04:00
parent 27f3329ff6
commit 4447a02cf1
59 changed files with 4774 additions and 398 deletions
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4
sql/my_decimal.cc
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@ -268,7 +268,8 @@ int str2my_decimal(uint mask, const char *from, size_t length,
integer part cannot be larger that 1e18 (otherwise it's an overflow).
fractional part is microseconds.
*/
bool my_decimal2seconds(const my_decimal *d, ulonglong *sec, ulong *microsec)
bool my_decimal2seconds(const my_decimal *d, ulonglong *sec,
ulong *microsec, ulong *nanosec)
{
int pos;
@ -286,6 +287,7 @@ bool my_decimal2seconds(const my_decimal *d, ulonglong *sec, ulong *microsec)
}
*microsec= d->frac ? static_cast<longlong>(d->buf[pos+1]) / (DIG_BASE/1000000) : 0;
*nanosec= d->frac ? static_cast<longlong>(d->buf[pos+1]) % (DIG_BASE/1000000) : 0;
if (pos > 1)
{