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Sync our copy of the timezone library with IANA release tzcode2017b.

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zic no longer mishandles some transitions in January 2038 when it
attempts to work around Qt bug 53071.  This fixes a bug affecting
Pacific/Tongatapu that was introduced in zic 2016e.  localtime.c
now contains a workaround, useful when loading a file generated by
a buggy zic.

There are assorted cosmetic changes as well, notably relocation
of a bunch of #defines.
This commit is contained in:
Tom Lane
2017-04-30 15:13:51 -04:00
parent 12d11432b4
commit e18b2c480d
7 changed files with 139 additions and 99 deletions
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9
src/timezone/pgtz.c
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@ -17,6 +17,7 @@
#include <sys/stat.h>
#include <time.h>
#include "datatype/timestamp.h"
#include "miscadmin.h"
#include "pgtz.h"
#include "storage/fd.h"
@ -308,14 +309,14 @@ pg_tzset_offset(long gmtoffset)
char tzname[128];
snprintf(offsetstr, sizeof(offsetstr),
"%02ld", absoffset / SECSPERHOUR);
absoffset %= SECSPERHOUR;
"%02ld", absoffset / SECS_PER_HOUR);
absoffset %= SECS_PER_HOUR;
if (absoffset != 0)
{
snprintf(offsetstr + strlen(offsetstr),
sizeof(offsetstr) - strlen(offsetstr),
":%02ld", absoffset / SECSPERMIN);
absoffset %= SECSPERMIN;
":%02ld", absoffset / SECS_PER_MINUTE);
absoffset %= SECS_PER_MINUTE;
if (absoffset != 0)
snprintf(offsetstr + strlen(offsetstr),
sizeof(offsetstr) - strlen(offsetstr),