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pg: Add date type & httpdate tests

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...I was hoping not to have to implement the date type, because date
conversions suck, but it turns out manned.org actually needs it.
(Only to then convert it into a Unix timestamp again, hmm, maybe this
string conversion isn't useful at all?)
This commit is contained in:
Yorhel 2025-02-24 11:51:43 +01:00
parent 8595c4ba64
commit fbbaa23842
4 changed files with 56 additions and 2 deletions
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30
c/pgtypes.c
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@ -511,6 +511,34 @@ SENDFN(timestamp) {
fustr_writebeI(64, out, ts);
}
RECVFN(date) {
RLEN(4);
time_t ts = ((time_t)fu_frombeI(32, buf)) * 86400 + UNIX_PG_EPOCH;
struct tm tm;
gmtime_r(&ts, &tm);
return newSVpvf("%04d-%02d-%02d", tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
}
SENDFN(date) {
int year, month, day;
if (sscanf(SvPV_nolen(val), "%4d-%2d-%2d", &year, &month, &day) != 3) SERR("invalid date format");
/* Can't use mktime() hackery here because libc has no UTC variant. Code
* below is adapted from PostgreSQL date2j() instead. */
if (month > 2) {
month += 1;
year += 4800;
} else {
month += 13;
year += 4799;
}
int century = year / 100;
int v = year * 365 - 32167;
v += year / 4 - century + century / 4;
v += 7834 * month / 256 + day;
v -= 2451545; /* Julian -> Postgres */
fustr_writebeI(32, out, v);
}
#undef UNIX_PG_EPOCH
#undef SIV
@ -615,7 +643,7 @@ SENDFN(timestamp) {
A( 1041, "_inet", 869 )\
B( 1042, "bpchar", text )\
B( 1043, "varchar", text )\
/* 1082 date */\
B( 1082, "date", date )\
/* 1083 time */\
B( 1114, "timestamp", timestamp)\
A( 1115, "_timestamp", 1114 )\