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Parse microseconds

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This commit is contained in:
rfm 2024-01-26 15:30:31 +00:00
parent 527735d95a
commit aa3262a521
1 changed files with 27 additions and 13 deletions
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40
Postgres.m
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@ -118,7 +118,7 @@ newDateFromBuffer(const char *b, int l)
{
NSCalendarDate *d;
NSTimeZone *zone = nil;
int milliseconds = 0;
int microseconds = 0;
int day;
int month;
int year;
@ -191,11 +191,17 @@ newDateFromBuffer(const char *b, int l)
{
i++;
if (i >= l || !isdigit(b[i])) return nil;
milliseconds = b[i++] - '0';
milliseconds *= 10;
if (i < l && isdigit(b[i])) milliseconds += b[i++] - '0';
milliseconds *= 10;
if (i < l && isdigit(b[i])) milliseconds += b[i++] - '0';
microseconds = b[i++] - '0';
microseconds *= 10;
if (i < l && isdigit(b[i])) microseconds += b[i++] - '0';
microseconds *= 10;
if (i < l && isdigit(b[i])) microseconds += b[i++] - '0';
microseconds *= 10;
if (i < l && isdigit(b[i])) microseconds += b[i++] - '0';
microseconds *= 10;
if (i < l && isdigit(b[i])) microseconds += b[i++] - '0';
microseconds *= 10;
if (i < l && isdigit(b[i])) microseconds += b[i++] - '0';
while (i < l && isdigit(b[i]))
i++;
}
@ -275,15 +281,23 @@ newDateFromBuffer(const char *b, int l)
second: second
timeZone: zone];
if (milliseconds > 0)
/* Postgres support six digits precision, but the ObjC APIs tend
* to use milliseconds. For now, truncate.
*/
if (microseconds > 0)
{
NSTimeInterval ti;
int milliseconds = microseconds / 1000;
ti = milliseconds;
ti /= 1000.0;
ti += [d timeIntervalSinceReferenceDate];
d = [d initWithTimeIntervalSinceReferenceDate: ti];
[d setTimeZone: zone];
if (milliseconds > 0)
{
NSTimeInterval ti;
ti = milliseconds;
ti /= 1000.0;
ti += [d timeIntervalSinceReferenceDate];
d = [d initWithTimeIntervalSinceReferenceDate: ti];
[d setTimeZone: zone];
}
}
}
[d setCalendarFormat: @"%Y-%m-%d %H:%M:%S %z"];