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Fix timestamptz_age() to do calculation in local timezone not GMT, per bug 1332.

This commit is contained in:
Tom Lane 2004-12-01 19:57:49 +00:00
parent 4828445d3c
commit 1e6457dfce
1 changed files with 20 additions and 14 deletions
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34
src/backend/utils/adt/timestamp.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.115 2004/11/20 22:12:44 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.116 2004/12/01 19:57:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -17,7 +17,6 @@
#include <ctype.h>
#include <math.h>
#include <errno.h>
#include <float.h>
#include <limits.h>
@ -2352,25 +2351,25 @@ timestamp_age(PG_FUNCTION_ARGS)
tm->tm_year = -tm->tm_year;
}
if (tm->tm_sec < 0)
while (tm->tm_sec < 0)
{
tm->tm_sec += 60;
tm->tm_min--;
}
if (tm->tm_min < 0)
while (tm->tm_min < 0)
{
tm->tm_min += 60;
tm->tm_hour--;
}
if (tm->tm_hour < 0)
while (tm->tm_hour < 0)
{
tm->tm_hour += 24;
tm->tm_mday--;
}
if (tm->tm_mday < 0)
while (tm->tm_mday < 0)
{
if (dt1 < dt2)
{
@ -2384,7 +2383,7 @@ timestamp_age(PG_FUNCTION_ARGS)
}
}
if (tm->tm_mon < 0)
while (tm->tm_mon < 0)
{
tm->tm_mon += 12;
tm->tm_year--;
@ -2437,11 +2436,14 @@ timestamptz_age(PG_FUNCTION_ARGS)
*tm1 = &tt1;
struct pg_tm tt2,
*tm2 = &tt2;
int tz1;
int tz2;
char *tzn;
result = (Interval *) palloc(sizeof(Interval));
if ((timestamp2tm(dt1, NULL, tm1, &fsec1, NULL) == 0)
&& (timestamp2tm(dt2, NULL, tm2, &fsec2, NULL) == 0))
if ((timestamp2tm(dt1, &tz1, tm1, &fsec1, &tzn) == 0)
&& (timestamp2tm(dt2, &tz2, tm2, &fsec2, &tzn) == 0))
{
fsec = (fsec1 - fsec2);
tm->tm_sec = (tm1->tm_sec - tm2->tm_sec);
@ -2463,25 +2465,25 @@ timestamptz_age(PG_FUNCTION_ARGS)
tm->tm_year = -tm->tm_year;
}
if (tm->tm_sec < 0)
while (tm->tm_sec < 0)
{
tm->tm_sec += 60;
tm->tm_min--;
}
if (tm->tm_min < 0)
while (tm->tm_min < 0)
{
tm->tm_min += 60;
tm->tm_hour--;
}
if (tm->tm_hour < 0)
while (tm->tm_hour < 0)
{
tm->tm_hour += 24;
tm->tm_mday--;
}
if (tm->tm_mday < 0)
while (tm->tm_mday < 0)
{
if (dt1 < dt2)
{
@ -2495,12 +2497,16 @@ timestamptz_age(PG_FUNCTION_ARGS)
}
}
if (tm->tm_mon < 0)
while (tm->tm_mon < 0)
{
tm->tm_mon += 12;
tm->tm_year--;
}
/*
* Note: we deliberately ignore any difference between tz1 and tz2.
*/
/* recover sign if necessary... */
if (dt1 < dt2)
{