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Fix up some problems in handling of zic-style time zone names in datetime

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input routines.  Remove the former "DecodePosixTimezone" function in favor of
letting the zic code handle POSIX-style zone specs (see tzparse()).  In
particular this means that "PST+3" now means the same as "-03", whereas it
used to mean "-11" --- the zone abbreviation is effectively just a noise word
in this syntax.  Make sure that all named and POSIX-style zone names will be
parsed as a single token.  Fix long-standing bogosities in printing and input
of fractional-hour timezone offsets (since the tzparse() code will accept
these, we'd better make 'em work).  Also correct an error in the original
coding of the zic-zone-name patch: in "timestamp without time zone" input,
zone names are supposed to be allowed but ignored, but the coding was such
that the zone changed the interpretation anyway.
REL8_2_STABLE
Tom Lane 19 years ago
parent d58f09e6b3
commit 022fd99668
8 changed files with 214 additions and 300 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 16
      doc/src/sgml/datatype.sgml
  2. 30
      doc/src/sgml/datetime.sgml
  3. 358
      src/backend/utils/adt/datetime.c
  4. 24
      src/test/regress/expected/horology.out
  5. 36
      src/test/regress/expected/timestamp.out
  6. 10
      src/test/regress/expected/timestamptz.out
  7. 12
      src/test/regress/sql/timestamp.sql
  8. 8
      src/test/regress/sql/timestamptz.sql

16
doc/src/sgml/datatype.sgml
Unescape View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.177 2006/10/16 19:58:26 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.178 2006/10/17 21:03:20 tgl Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
@ -1675,12 +1675,16 @@ SELECT b, char_length(b) FROM test2;
<tbody>
<row>
<entry><literal>PST</literal></entry>
<entry>Pacific Standard Time</entry>
<entry>Abbreviation (for Pacific Standard Time)</entry>
</row>
<row>
<entry><literal>America/New_York</literal></entry>
<entry>Full time zone name</entry>
</row>
<row>
<entry><literal>PST8PDT</literal></entry>
<entry>POSIX-style time zone specification</entry>
</row>
<row>
<entry><literal>-8:00</literal></entry>
<entry>ISO-8601 offset for PST</entry>
@ -2183,7 +2187,7 @@ January 8 04:05:06 1999 PST
<listitem>
<para>
In addition to the timezone names and abbreviations,
<productname>PostgreSQL</productname> will accept time zone
<productname>PostgreSQL</productname> will accept POSIX-style time zone
specifications of the form <replaceable>STD</><replaceable>offset</> or
<replaceable>STD</><replaceable>offset</><replaceable>DST</>, where
<replaceable>STD</> is a zone abbreviation, <replaceable>offset</> is a
@ -2220,12 +2224,6 @@ January 8 04:05:06 1999 PST
prior to 8.2, which were case-sensitive in some contexts and not others.)
</para>
<para>
Note that timezone names are <emphasis>not</> used for date/time output
&mdash; all supported output formats use numeric timezone displays to
avoid ambiguity.
</para>
<para>
Neither full names nor abbreviations are hard-wired into the server;
they are obtained from configuration files stored under

30
doc/src/sgml/datetime.sgml
Unescape View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/datetime.sgml,v 2.54 2006/09/22 16:35:55 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datetime.sgml,v 2.55 2006/10/17 21:03:20 tgl Exp $ -->
<appendix id="datetime-appendix">
<title>Date/Time Support</title>
@ -46,9 +46,9 @@
<para>
If the numeric token contains a dash (<literal>-</>), slash
(<literal>/</>), or two or more dots (<literal>.</>), this is
a date string which may have a text month. In case of a slash
(<literal>/</>) it can also be a full time zone name like
<literal>America/New_York</>.
a date string which may have a text month. If a date token has
already been seen, it is instead interpreted as a time zone
name (e.g., <literal>America/New_York</>).
</para>
</step>
@ -64,7 +64,7 @@
<step>
<para>
If the token starts with a plus (<literal>+</>) or minus
(<literal>-</>), then it is either a time zone or a special
(<literal>-</>), then it is either a numeric time zone or a special
field.
</para>
</step>
@ -73,30 +73,24 @@
<step>
<para>
If the token is a text string, match up with possible strings.
If the token is a text string, match up with possible strings:
</para>
<substeps>
<step>
<para>
Do a binary-search table lookup for the token
as either a special string (e.g., <literal>today</literal>),
day (e.g., <literal>Thursday</literal>),
month (e.g., <literal>January</literal>),
or noise word (e.g., <literal>at</literal>, <literal>on</literal>).
</para>
<para>
Set field values and bit mask for fields.
For example, set year, month, day for <literal>today</literal>,
and additionally hour, minute, second for <literal>now</literal>.
Do a binary-search table lookup for the token as a time zone
abbreviation.
</para>
</step>
<step>
<para>
If not found, do a similar binary-search table lookup to match
the token with a time zone.
the token as either a special string (e.g., <literal>today</literal>),
day (e.g., <literal>Thursday</literal>),
month (e.g., <literal>January</literal>),
or noise word (e.g., <literal>at</literal>, <literal>on</literal>).
</para>
</step>

358
src/backend/utils/adt/datetime.c
Unescape View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.172 2006/10/04 00:29:58 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.173 2006/10/17 21:03:21 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -39,8 +39,6 @@ static int DecodeNumberField(int len, char *str,
static int DecodeTime(char *str, int fmask, int *tmask,
struct pg_tm * tm, fsec_t *fsec);
static int DecodeTimezone(char *str, int *tzp);
static int DecodePosixTimezone(char *str, int *tzp);
static int DecodeZicTimezone(char *str, int *tzp, struct pg_tm * tm);
static const datetkn *datebsearch(const char *key, const datetkn *base, int nel);
static int DecodeDate(char *str, int fmask, int *tmask, struct pg_tm * tm);
static void TrimTrailingZeros(char *str);
@ -173,7 +171,7 @@ static const datetkn datetktbl[] = {
{"wednesday", DOW, 3},
{"weds", DOW, 3},
{"y", UNITS, DTK_YEAR}, /* "year" for ISO input */
{YESTERDAY, RESERV, DTK_YESTERDAY}, /* yesterday midnight */
{YESTERDAY, RESERV, DTK_YESTERDAY} /* yesterday midnight */
};
static int szdatetktbl = sizeof datetktbl / sizeof datetktbl[0];
@ -243,7 +241,7 @@ static datetkn deltatktbl[] = {
{DYEAR, UNITS, DTK_YEAR}, /* "year" relative */
{"years", UNITS, DTK_YEAR}, /* "years" relative */
{"yr", UNITS, DTK_YEAR}, /* "year" relative */
{"yrs", UNITS, DTK_YEAR}, /* "years" relative */
{"yrs", UNITS, DTK_YEAR} /* "years" relative */
};
static int szdeltatktbl = sizeof deltatktbl / sizeof deltatktbl[0];
@ -427,14 +425,14 @@ TrimTrailingZeros(char *str)
* DTK_NUMBER - digits and (possibly) a decimal point
* DTK_DATE - digits and two delimiters, or digits and text
* DTK_TIME - digits, colon delimiters, and possibly a decimal point
* DTK_STRING - text (no digits)
* DTK_STRING - text (no digits or punctuation)
* DTK_SPECIAL - leading "+" or "-" followed by text
* DTK_TZ - leading "+" or "-" followed by digits
* DTK_TZ - leading "+" or "-" followed by digits (also eats ':' or '.')
*
* Note that some field types can hold unexpected items:
* DTK_NUMBER can hold date fields (yy.ddd)
* DTK_STRING can hold months (January) and time zones (PST)
* DTK_DATE can hold Posix time zones (GMT-8)
* DTK_DATE can hold time zone names (America/New_York, GMT-8)
*/
int
ParseDateTime(const char *timestr, char *workbuf, size_t buflen,
@ -546,46 +544,42 @@ ParseDateTime(const char *timestr, char *workbuf, size_t buflen,
*/
else if (isalpha((unsigned char) *cp))
{
bool is_date;
ftype[nf] = DTK_STRING;
APPEND_CHAR(bufp, bufend, pg_tolower((unsigned char) *cp++));
while (isalpha((unsigned char) *cp))
APPEND_CHAR(bufp, bufend, pg_tolower((unsigned char) *cp++));
/*
* Full date string with leading text month? Could also be a POSIX
* time zone...
* Dates can have embedded '-', '/', or '.' separators. It could
* also be a timezone name containing embedded '/', '+', '-',
* '_', or ':' (but '_' or ':' can't be the first punctuation).
* If the next character is a digit or '+', we need to check
* whether what we have so far is a recognized non-timezone
* keyword --- if so, don't believe that this is the start of
* a timezone.
*/
is_date = false;
if (*cp == '-' || *cp == '/' || *cp == '.')
is_date = true;
else if (*cp == '+' || isdigit((unsigned char) *cp))
{
char delim = *cp;
if (*cp == '/')
{
ftype[nf] = DTK_TZ;
/*
* set the first character of the region to upper case
* again
*/
field[nf][0] = pg_toupper((unsigned char) field[nf][0]);
/*
* we have seen "Region/" of a POSIX timezone, continue to
* read the City part
*/
do
{
APPEND_CHAR(bufp, bufend, *cp++);
/* there is for example America/New_York */
} while (isalpha((unsigned char) *cp) || *cp == '_');
*bufp = '\0'; /* null-terminate current field value */
/* we need search only the core token table, not TZ names */
if (datebsearch(field[nf], datetktbl, szdatetktbl) == NULL)
is_date = true;
}
else
if (is_date)
{
ftype[nf] = DTK_DATE;
APPEND_CHAR(bufp, bufend, *cp++);
}
while (isdigit((unsigned char) *cp) || *cp == delim)
APPEND_CHAR(bufp, bufend, *cp++);
do
{
APPEND_CHAR(bufp, bufend, pg_tolower((unsigned char) *cp++));
} while (*cp == '+' || *cp == '-' ||
*cp == '/' || *cp == '_' ||
*cp == '.' || *cp == ':' ||
isalnum((unsigned char) *cp));
}
}
/* sign? then special or numeric timezone */
@ -674,7 +668,7 @@ DecodeDateTime(char **field, int *ftype, int nf,
bool haveTextMonth = FALSE;
int is2digits = FALSE;
int bc = FALSE;
int zicTzFnum = -1;
pg_tz *namedTz = NULL;
/*
* We'll insist on at least all of the date fields, but initialize the
@ -724,8 +718,8 @@ DecodeDateTime(char **field, int *ftype, int nf,
break;
}
/***
* Already have a date? Then this might be a POSIX time
* zone with an embedded dash (e.g. "PST-3" == "EST") or
* Already have a date? Then this might be a time zone name
* with embedded punctuation (e.g. "America/New_York") or
* a run-together time with trailing time zone (e.g. hhmmss-zz).
* - thomas 2001-12-25
***/
@ -774,7 +768,6 @@ DecodeDateTime(char **field, int *ftype, int nf,
fsec, &is2digits);
if (dterr < 0)
return dterr;
ftype[i] = dterr;
/*
* modify tmask after returning from
@ -784,11 +777,20 @@ DecodeDateTime(char **field, int *ftype, int nf,
}
else
{
dterr = DecodePosixTimezone(field[i], tzp);
if (dterr)
return dterr;
ftype[i] = DTK_TZ;
namedTz = pg_tzset(field[i]);
if (!namedTz)
{
/*
* We should return an error code instead of
* ereport'ing directly, but then there is no
* way to report the bad time zone name.
*/
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("time zone \"%s\" not recognized",
field[i])));
}
/* we'll apply the zone setting below */
tmask = DTK_M(TZ);
}
}
@ -822,35 +824,12 @@ DecodeDateTime(char **field, int *ftype, int nf,
if (tzp == NULL)
return DTERR_BAD_FORMAT;
if (strchr(field[i], '/') != NULL)
{
/* remember to apply the timezone at the end */
zicTzFnum = i;
tmask = DTK_M(TZ);
break;
}
else
dterr = DecodeTimezone(field[i], &tz);
if (dterr)
return dterr;
/*
* Already have a time zone? Then maybe this is the second
* field of a POSIX time: EST+3 (equivalent to PST)
*/
if (i > 0 && (fmask & DTK_M(TZ)) != 0 &&
ftype[i - 1] == DTK_TZ &&
isalpha((unsigned char) *field[i - 1]))
{
*tzp -= tz;
tmask = 0;
}
else
{
*tzp = tz;
tmask = DTK_M(TZ);
}
}
break;
case DTK_NUMBER:
@ -988,8 +967,6 @@ DecodeDateTime(char **field, int *ftype, int nf,
fsec, &is2digits);
if (dterr < 0)
return dterr;
ftype[i] = dterr;
if (tmask != DTK_TIME_M)
return DTERR_BAD_FORMAT;
break;
@ -1030,7 +1007,6 @@ DecodeDateTime(char **field, int *ftype, int nf,
fsec, &is2digits);
if (dterr < 0)
return dterr;
ftype[i] = dterr;
}
else if (flen > 4)
{
@ -1039,7 +1015,6 @@ DecodeDateTime(char **field, int *ftype, int nf,
fsec, &is2digits);
if (dterr < 0)
return dterr;
ftype[i] = dterr;
}
/* otherwise it is a single date/time field... */
else
@ -1168,7 +1143,6 @@ DecodeDateTime(char **field, int *ftype, int nf,
if (tzp == NULL)
return DTERR_BAD_FORMAT;
*tzp = val * MINS_PER_HOUR;
ftype[i] = DTK_TZ;
break;
case TZ:
@ -1176,7 +1150,6 @@ DecodeDateTime(char **field, int *ftype, int nf,
if (tzp == NULL)
return DTERR_BAD_FORMAT;
*tzp = val * MINS_PER_HOUR;
ftype[i] = DTK_TZ;
break;
case IGNORE_DTF:
@ -1308,18 +1281,17 @@ DecodeDateTime(char **field, int *ftype, int nf,
if (tm->tm_mday > day_tab[isleap(tm->tm_year)][tm->tm_mon - 1])
return DTERR_FIELD_OVERFLOW;
if (zicTzFnum != -1)
/*
* If we had a full timezone spec, compute the offset (we could not
* do it before, because we need the date to resolve DST status).
*/
if (namedTz != NULL)
{
Datum tsTz;
Timestamp timestamp;
/* daylight savings time modifier disallowed with full TZ */
if (fmask & DTK_M(DTZMOD))
return DTERR_BAD_FORMAT;
tm2timestamp(tm, *fsec, NULL, &timestamp);
tsTz = DirectFunctionCall2(timestamp_zone,
DirectFunctionCall1(textin,
CStringGetDatum(field[zicTzFnum])),
TimestampGetDatum(timestamp));
timestamp2tm(DatumGetTimestampTz(tsTz), tzp, tm, fsec, NULL, NULL);
fmask &= ~DTK_M(TZ);
*tzp = DetermineTimeZoneOffset(tm, namedTz);
}
/* timezone not specified? then find local timezone if possible */
@ -1492,6 +1464,7 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
int dterr;
int is2digits = FALSE;
int mer = HR24;
pg_tz *namedTz = NULL;
*dtype = DTK_TIME;
tm->tm_hour = 0;
@ -1567,10 +1540,20 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
}
else
{
dterr = DecodePosixTimezone(field[i], tzp);
if (dterr)
return dterr;
namedTz = pg_tzset(field[i]);
if (!namedTz)
{
/*
* We should return an error code instead of
* ereport'ing directly, but then there is no
* way to report the bad time zone name.
*/
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("time zone \"%s\" not recognized",
field[i])));
}
/* we'll apply the zone setting below */
ftype[i] = DTK_TZ;
tmask = DTK_M(TZ);
}
@ -1591,35 +1574,12 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
if (tzp == NULL)
return DTERR_BAD_FORMAT;
if (strchr(field[i], '/') != NULL)
{
/* a date has to be specified */
if ((fmask & DTK_DATE_M) != DTK_DATE_M)
return DTERR_BAD_FORMAT;
dterr = DecodeZicTimezone(field[i], &tz, tm);
}
else
dterr = DecodeTimezone(field[i], &tz);
if (dterr)
return dterr;
/*
* Already have a time zone? Then maybe this is the second
* field of a POSIX time: EST+3 (equivalent to PST)
*/
if (i > 0 && (fmask & DTK_M(TZ)) != 0 &&
ftype[i - 1] == DTK_TZ &&
isalpha((unsigned char) *field[i - 1]))
{
*tzp -= tz;
tmask = 0;
}
else
{
*tzp = tz;
tmask = DTK_M(TZ);
}
}
break;
case DTK_NUMBER:
@ -1975,20 +1935,37 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
if (tm->tm_hour < 0 || tm->tm_min < 0 || tm->tm_min > 59 ||
tm->tm_sec < 0 || tm->tm_sec > 60 || tm->tm_hour > 24 ||
/* test for > 24:00:00 */
(tm->tm_hour == 24 && (tm->tm_min > 0 || tm->tm_sec > 0 ||
#ifdef HAVE_INT64_TIMESTAMP
(tm->tm_hour == 24 && (tm->tm_min > 0 || tm->tm_sec > 0 ||
*fsec > INT64CONST(0))) ||
*fsec < INT64CONST(0) || *fsec >= USECS_PER_SEC)
return DTERR_FIELD_OVERFLOW;
*fsec < INT64CONST(0) || *fsec >= USECS_PER_SEC
#else
(tm->tm_hour == 24 && (tm->tm_min > 0 || tm->tm_sec > 0 ||
*fsec > 0)) ||
*fsec < 0 || *fsec >= 1)
return DTERR_FIELD_OVERFLOW;
*fsec < 0 || *fsec >= 1
#endif
)
return DTERR_FIELD_OVERFLOW;
if ((fmask & DTK_TIME_M) != DTK_TIME_M)
return DTERR_BAD_FORMAT;
/*
* If we had a full timezone spec, compute the offset (we could not
* do it before, because we need the date to resolve DST status).
*/
if (namedTz != NULL)
{
/* a date has to be specified */
if ((fmask & DTK_DATE_M) != DTK_DATE_M)
return DTERR_BAD_FORMAT;
/* daylight savings time modifier disallowed with full TZ */
if (fmask & DTK_M(DTZMOD))
return DTERR_BAD_FORMAT;
*tzp = DetermineTimeZoneOffset(tm, namedTz);
}
/* timezone not specified? then find local timezone if possible */
if (tzp != NULL && !(fmask & DTK_M(TZ)))
{
@ -2548,7 +2525,8 @@ DecodeTimezone(char *str, int *tzp)
{
int tz;
int hr,
min;
min,
sec = 0;
char *cp;
/* leading character must be "+" or "-" */
@ -2567,22 +2545,32 @@ DecodeTimezone(char *str, int *tzp)
min = strtol(cp + 1, &cp, 10);
if (errno == ERANGE)
return DTERR_TZDISP_OVERFLOW;
if (*cp == ':')
{
errno = 0;
sec = strtol(cp + 1, &cp, 10);
if (errno == ERANGE)
return DTERR_TZDISP_OVERFLOW;
}
}
/* otherwise, might have run things together... */
else if (*cp == '\0' && strlen(str) > 3)
{
min = hr % 100;
hr = hr / 100;
/* we could, but don't, support a run-together hhmmss format */
}
else
min = 0;
if (hr < 0 || hr > 13)
if (hr < 0 || hr > 14)
return DTERR_TZDISP_OVERFLOW;
if (min < 0 || min >= 60)
return DTERR_TZDISP_OVERFLOW;
if (sec < 0 || sec >= 60)
return DTERR_TZDISP_OVERFLOW;
tz = (hr * MINS_PER_HOUR + min) * SECS_PER_MINUTE;
tz = (hr * MINS_PER_HOUR + min) * SECS_PER_MINUTE + sec;
if (*str == '-')
tz = -tz;
@ -2594,75 +2582,6 @@ DecodeTimezone(char *str, int *tzp)
return 0;
}
/* DecodePosixTimezone()
* Interpret string as a POSIX-compatible timezone:
* PST-hh:mm
* PST+h
* PST
* - thomas 2000-03-15
*
* Return 0 if okay (and set *tzp), a DTERR code if not okay.
*/
static int
DecodePosixTimezone(char *str, int *tzp)
{
int val,
tz;
int type;
int dterr;
char *cp;
char delim;
/* advance over name part */
cp = str;
while (*cp && isalpha((unsigned char) *cp))
cp++;
/* decode offset, if present */
if (*cp)
{
dterr = DecodeTimezone(cp, &tz);
if (dterr)
return dterr;
}
else
tz = 0;
/* decode name part. We must temporarily scribble on the input! */
delim = *cp;
*cp = '\0';
type = DecodeSpecial(MAXDATEFIELDS - 1, str, &val);
*cp = delim;
switch (type)
{
case DTZ:
case TZ:
*tzp = (val * MINS_PER_HOUR) - tz;
break;
default:
return DTERR_BAD_FORMAT;
}
return 0;
}
static int
DecodeZicTimezone(char *str, int *tzp, struct pg_tm * tm)
{
struct pg_tz *tz;
tz = pg_tzset(str);
if (!tz)
return DTERR_BAD_FORMAT;
*tzp = DetermineTimeZoneOffset(tm, tz);
return 0;
}
/* DecodeSpecial()
* Decode text string using lookup table.
*
@ -3194,6 +3113,33 @@ datebsearch(const char *key, const datetkn *base, int nel)
return NULL;
}
/* EncodeTimezone()
* Append representation of a numeric timezone offset to str.
*/
static void
EncodeTimezone(char *str, int tz)
{
int hour,
min,
sec;
sec = abs(tz);
min = sec / SECS_PER_MINUTE;
sec -= min * SECS_PER_MINUTE;
hour = min / MINS_PER_HOUR;
min -= hour * MINS_PER_HOUR;
str += strlen(str);
/* TZ is negated compared to sign we wish to display ... */
*str++ = (tz <= 0 ? '+' : '-');
if (sec != 0)
sprintf(str, "%02d:%02d:%02d", hour, min, sec);
else if (min != 0)
sprintf(str, "%02d:%02d", hour, min);
else
sprintf(str, "%02d", hour);
}
/* EncodeDateOnly()
* Encode date as local time.
@ -3284,14 +3230,7 @@ EncodeTimeOnly(struct pg_tm * tm, fsec_t fsec, int *tzp, int style, char *str)
sprintf(str + strlen(str), ":%02d", tm->tm_sec);
if (tzp != NULL)
{
int hour,
min;
hour = -(*tzp / SECS_PER_HOUR);
min = (abs(*tzp) / MINS_PER_HOUR) % MINS_PER_HOUR;
sprintf(str + strlen(str), (min != 0) ? "%+03d:%02d" : "%+03d", hour, min);
}
EncodeTimezone(str, *tzp);
return TRUE;
} /* EncodeTimeOnly() */
@ -3311,9 +3250,7 @@ EncodeTimeOnly(struct pg_tm * tm, fsec_t fsec, int *tzp, int style, char *str)
int
EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style, char *str)
{
int day,
hour,
min;
int day;
/*
* Why are we checking only the month field? Change this to an assert...
@ -3360,11 +3297,7 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
* a valid time zone translation.
*/
if (tzp != NULL && tm->tm_isdst >= 0)
{
hour = -(*tzp / SECS_PER_HOUR);
min = (abs(*tzp) / MINS_PER_HOUR) % MINS_PER_HOUR;
sprintf(str + strlen(str), (min != 0) ? "%+03d:%02d" : "%+03d", hour, min);
}
EncodeTimezone(str, *tzp);
if (tm->tm_year <= 0)
sprintf(str + strlen(str), " BC");
@ -3410,11 +3343,7 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
if (*tzn != NULL)
sprintf(str + strlen(str), " %.*s", MAXTZLEN, *tzn);
else
{
hour = -(*tzp / SECS_PER_HOUR);
min = (abs(*tzp) / MINS_PER_HOUR) % MINS_PER_HOUR;
sprintf(str + strlen(str), (min != 0) ? "%+03d:%02d" : "%+03d", hour, min);
}
EncodeTimezone(str, *tzp);
}
if (tm->tm_year <= 0)
@ -3458,11 +3387,7 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
if (*tzn != NULL)
sprintf(str + strlen(str), " %.*s", MAXTZLEN, *tzn);
else
{
hour = -(*tzp / SECS_PER_HOUR);
min = (abs(*tzp) / MINS_PER_HOUR) % MINS_PER_HOUR;
sprintf(str + strlen(str), (min != 0) ? "%+03d:%02d" : "%+03d", hour, min);
}
EncodeTimezone(str, *tzp);
}
if (tm->tm_year <= 0)
@ -3524,9 +3449,8 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
* avoid formatting something which would be rejected by
* the date/time parser later. - thomas 2001-10-19
*/
hour = -(*tzp / SECS_PER_HOUR);
min = (abs(*tzp) / MINS_PER_HOUR) % MINS_PER_HOUR;
sprintf(str + strlen(str), (min != 0) ? " %+03d:%02d" : " %+03d", hour, min);
sprintf(str + strlen(str), " ");
EncodeTimezone(str, *tzp);
}
}

24
src/test/regress/expected/horology.out
Unescape View File

@ -448,7 +448,7 @@ SELECT '' AS "64", d1 + interval '1 year' AS one_year FROM TIMESTAMP_TBL;
| Tue Feb 10 17:32:01 1998
| Tue Feb 10 17:32:01 1998
| Tue Feb 10 17:32:01 1998
| Tue Feb 10 14:32:01 1998
| Tue Feb 10 17:32:01 1998
| Wed Jun 10 18:32:01 1998
| Tue Feb 10 17:32:01 1998
| Wed Feb 11 17:32:01 1998
@ -518,7 +518,7 @@ SELECT '' AS "64", d1 - interval '1 year' AS one_year FROM TIMESTAMP_TBL;
| Sat Feb 10 17:32:01 1996
| Sat Feb 10 17:32:01 1996
| Sat Feb 10 17:32:01 1996
| Sat Feb 10 14:32:01 1996
| Sat Feb 10 17:32:01 1996
| Mon Jun 10 18:32:01 1996
| Sat Feb 10 17:32:01 1996
| Sun Feb 11 17:32:01 1996
@ -936,8 +936,8 @@ SELECT t.d1 + i.f1 AS "102" FROM TIMESTAMP_TBL t, INTERVAL_TBL i
Mon Feb 10 22:32:01 1997
Mon Feb 10 17:33:01 1997
Mon Feb 10 22:32:01 1997
Mon Feb 10 14:33:01 1997
Mon Feb 10 19:32:01 1997
Mon Feb 10 17:33:01 1997
Mon Feb 10 22:32:01 1997
Tue Jun 10 18:33:01 1997
Tue Jun 10 23:32:01 1997
Mon Feb 10 17:33:01 1997
@ -1047,8 +1047,8 @@ SELECT t.d1 - i.f1 AS "102" FROM TIMESTAMP_TBL t, INTERVAL_TBL i
Mon Feb 10 12:32:01 1997
Mon Feb 10 17:31:01 1997
Mon Feb 10 12:32:01 1997
Mon Feb 10 14:31:01 1997
Mon Feb 10 09:32:01 1997
Mon Feb 10 17:31:01 1997
Mon Feb 10 12:32:01 1997
Tue Jun 10 18:31:01 1997
Tue Jun 10 13:32:01 1997
Mon Feb 10 17:31:01 1997
@ -2538,7 +2538,7 @@ SELECT '' AS "64", d1 AS us_postgres FROM TIMESTAMP_TBL;
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 14:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Jun 10 18:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Feb 11 17:32:01 1997
@ -2621,7 +2621,7 @@ SELECT '' AS "64", d1 AS us_iso FROM TIMESTAMP_TBL;
| 1997-02-10 17:32:01
| 1997-02-10 17:32:01
| 1997-02-10 17:32:01
| 1997-02-10 14:32:01
| 1997-02-10 17:32:01
| 1997-06-10 18:32:01
| 1997-02-10 17:32:01
| 1997-02-11 17:32:01
@ -2710,7 +2710,7 @@ SELECT '' AS "64", d1 AS us_sql FROM TIMESTAMP_TBL;
| 02/10/1997 17:32:01
| 02/10/1997 17:32:01
| 02/10/1997 17:32:01
| 02/10/1997 14:32:01
| 02/10/1997 17:32:01
| 06/10/1997 18:32:01
| 02/10/1997 17:32:01
| 02/11/1997 17:32:01
@ -2806,7 +2806,7 @@ SELECT '' AS "65", d1 AS european_postgres FROM TIMESTAMP_TBL;
| Mon 10 Feb 17:32:01 1997
| Mon 10 Feb 17:32:01 1997
| Mon 10 Feb 17:32:01 1997
| Mon 10 Feb 14:32:01 1997
| Mon 10 Feb 17:32:01 1997
| Tue 10 Jun 18:32:01 1997
| Mon 10 Feb 17:32:01 1997
| Tue 11 Feb 17:32:01 1997
@ -2896,7 +2896,7 @@ SELECT '' AS "65", d1 AS european_iso FROM TIMESTAMP_TBL;
| 1997-02-10 17:32:01
| 1997-02-10 17:32:01
| 1997-02-10 17:32:01
| 1997-02-10 14:32:01
| 1997-02-10 17:32:01
| 1997-06-10 18:32:01
| 1997-02-10 17:32:01
| 1997-02-11 17:32:01
@ -2986,7 +2986,7 @@ SELECT '' AS "65", d1 AS european_sql FROM TIMESTAMP_TBL;
| 10/02/1997 17:32:01
| 10/02/1997 17:32:01
| 10/02/1997 17:32:01
| 10/02/1997 14:32:01
| 10/02/1997 17:32:01
| 10/06/1997 18:32:01
| 10/02/1997 17:32:01
| 11/02/1997 17:32:01

36
src/test/regress/expected/timestamp.out
Unescape View File

@ -80,12 +80,12 @@ INSERT INTO TIMESTAMP_TBL VALUES ('1997-02-10 17:32:01 -08:00');
INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800');
INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00');
INSERT INTO TIMESTAMP_TBL VALUES ('2001-09-22T18:19:20');
-- POSIX format
-- POSIX format (note that the timezone abbrev is just decoration here)
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT -2');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 EST+3');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 EST +2:00');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT-2');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 PST+8');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 MST+7:00');
-- Variations for acceptable input formats
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800');
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997');
@ -101,9 +101,9 @@ INSERT INTO TIMESTAMP_TBL VALUES ('97/02/10 17:32:01 UTC');
reset datestyle;
INSERT INTO TIMESTAMP_TBL VALUES ('1997.041 17:32:01 UTC');
INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 America/New_York');
-- this fails
-- this fails (even though TZ is a no-op, we still look it up)
INSERT INTO TIMESTAMP_TBL VALUES ('19970710 173201 America/Does_not_exist');
ERROR: time zone "America/Does_not_exist" not recognized
ERROR: time zone "america/does_not_exist" not recognized
-- Check date conversion and date arithmetic
INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 18:32:01 PDT');
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997');
@ -179,7 +179,7 @@ SELECT '' AS "64", d1 FROM TIMESTAMP_TBL;
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 14:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Jun 10 18:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Feb 11 17:32:01 1997
@ -248,7 +248,7 @@ SELECT '' AS "48", d1 FROM TIMESTAMP_TBL
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 14:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Jun 10 18:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Feb 11 17:32:01 1997
@ -333,7 +333,7 @@ SELECT '' AS "63", d1 FROM TIMESTAMP_TBL
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 14:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Jun 10 18:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Feb 11 17:32:01 1997
@ -424,7 +424,7 @@ SELECT '' AS "49", d1 FROM TIMESTAMP_TBL
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 17:32:01 1997
| Mon Feb 10 14:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Jun 10 18:32:01 1997
| Mon Feb 10 17:32:01 1997
| Tue Feb 11 17:32:01 1997
@ -480,7 +480,7 @@ SELECT '' AS "54", d1 - timestamp without time zone '1997-01-02' AS diff
| @ 39 days 17 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 39 days 14 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 159 days 18 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 40 days 17 hours 32 mins 1 sec
@ -550,7 +550,7 @@ SELECT '' AS "54", d1 - timestamp without time zone '1997-01-02' AS diff
| @ 39 days 17 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 39 days 14 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 159 days 18 hours 32 mins 1 sec
| @ 39 days 17 hours 32 mins 1 sec
| @ 40 days 17 hours 32 mins 1 sec
@ -614,7 +614,7 @@ SELECT '' AS "54", d1 as "timestamp",
| Mon Feb 10 17:32:01 1997 | 1997 | 2 | 10 | 17 | 32 | 1
| Mon Feb 10 17:32:01 1997 | 1997 | 2 | 10 | 17 | 32 | 1
| Mon Feb 10 17:32:01 1997 | 1997 | 2 | 10 | 17 | 32 | 1
| Mon Feb 10 14:32:01 1997 | 1997 | 2 | 10 | 14 | 32 | 1
| Mon Feb 10 17:32:01 1997 | 1997 | 2 | 10 | 17 | 32 | 1
| Tue Jun 10 18:32:01 1997 | 1997 | 6 | 10 | 18 | 32 | 1
| Mon Feb 10 17:32:01 1997 | 1997 | 2 | 10 | 17 | 32 | 1
| Tue Feb 11 17:32:01 1997 | 1997 | 2 | 11 | 17 | 32 | 1
@ -677,7 +677,7 @@ SELECT '' AS "54", d1 as "timestamp",
| Mon Feb 10 17:32:01 1997 | 1 | 1000 | 1000000
| Mon Feb 10 17:32:01 1997 | 1 | 1000 | 1000000
| Mon Feb 10 17:32:01 1997 | 1 | 1000 | 1000000
| Mon Feb 10 14:32:01 1997 | 1 | 1000 | 1000000
| Mon Feb 10 17:32:01 1997 | 1 | 1000 | 1000000
| Tue Jun 10 18:32:01 1997 | 2 | 1000 | 1000000
| Mon Feb 10 17:32:01 1997 | 1 | 1000 | 1000000
| Tue Feb 11 17:32:01 1997 | 1 | 1000 | 1000000
@ -1025,7 +1025,7 @@ SELECT '' AS to_char_5, to_char(d1, 'HH HH12 HH24 MI SS SSSS')
| 05 05 17 32 01 63121
| 05 05 17 32 01 63121
| 05 05 17 32 01 63121
| 02 02 14 32 01 52321
| 05 05 17 32 01 63121
| 06 06 18 32 01 66721
| 05 05 17 32 01 63121
| 05 05 17 32 01 63121
@ -1096,7 +1096,7 @@ SELECT '' AS to_char_6, to_char(d1, E'"HH:MI:SS is" HH:MI:SS "\\"text between qu
| HH:MI:SS is 05:32:01 "text between quote marks"
| HH:MI:SS is 05:32:01 "text between quote marks"
| HH:MI:SS is 05:32:01 "text between quote marks"
| HH:MI:SS is 02:32:01 "text between quote marks"
| HH:MI:SS is 05:32:01 "text between quote marks"
| HH:MI:SS is 06:32:01 "text between quote marks"
| HH:MI:SS is 05:32:01 "text between quote marks"
| HH:MI:SS is 05:32:01 "text between quote marks"
@ -1167,7 +1167,7 @@ SELECT '' AS to_char_7, to_char(d1, 'HH24--text--MI--text--SS')
| 17--text--32--text--01
| 17--text--32--text--01
| 17--text--32--text--01
| 14--text--32--text--01
| 17--text--32--text--01
| 18--text--32--text--01
| 17--text--32--text--01
| 17--text--32--text--01
@ -1310,7 +1310,7 @@ SELECT '' AS to_char_9, to_char(d1, 'YYYY A.D. YYYY a.d. YYYY bc HH:MI:SS P.M. H
| 1997 A.D. 1997 a.d. 1997 ad 05:32:01 P.M. 05:32:01 p.m. 05:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 05:32:01 P.M. 05:32:01 p.m. 05:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 05:32:01 P.M. 05:32:01 p.m. 05:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 02:32:01 P.M. 02:32:01 p.m. 02:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 05:32:01 P.M. 05:32:01 p.m. 05:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 06:32:01 P.M. 06:32:01 p.m. 06:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 05:32:01 P.M. 05:32:01 p.m. 05:32:01 pm
| 1997 A.D. 1997 a.d. 1997 ad 05:32:01 P.M. 05:32:01 p.m. 05:32:01 pm

10
src/test/regress/expected/timestamptz.out
Unescape View File

@ -75,12 +75,12 @@ INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-02-10 17:32:01 -08:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970210 173201 -0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-06-10 17:32:01 -07:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2001-09-22T18:19:20');
-- POSIX format
-- POSIX format (note that the timezone abbrev is just decoration here)
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 12:14:03 GMT -2');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 03:14:04 EST+3');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 02:14:05 EST +2:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 12:14:03 GMT-2');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 03:14:04 PST+8');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 02:14:05 MST+7:00');
-- Variations for acceptable input formats
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 17:32:01 1997 -0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 17:32:01 1997');
@ -111,7 +111,7 @@ SELECT '19970710 173201' AT TIME ZONE 'America/New_York';
(1 row)
INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970710 173201 America/Does_not_exist');
ERROR: time zone "America/Does_not_exist" not recognized
ERROR: time zone "america/does_not_exist" not recognized
SELECT '19970710 173201' AT TIME ZONE 'America/Does_not_exist';
ERROR: time zone "America/Does_not_exist" not recognized
-- Check date conversion and date arithmetic

12
src/test/regress/sql/timestamp.sql
Unescape View File

@ -62,12 +62,12 @@ INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800');
INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00');
INSERT INTO TIMESTAMP_TBL VALUES ('2001-09-22T18:19:20');
-- POSIX format
-- POSIX format (note that the timezone abbrev is just decoration here)
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT -2');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 EST+3');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 EST +2:00');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT-2');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 PST+8');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 MST+7:00');
-- Variations for acceptable input formats
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800');
@ -83,12 +83,10 @@ INSERT INTO TIMESTAMP_TBL VALUES ('97FEB10 5:32:01PM UTC');
INSERT INTO TIMESTAMP_TBL VALUES ('97/02/10 17:32:01 UTC');
reset datestyle;
INSERT INTO TIMESTAMP_TBL VALUES ('1997.041 17:32:01 UTC');
INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 America/New_York');
-- this fails
-- this fails (even though TZ is a no-op, we still look it up)
INSERT INTO TIMESTAMP_TBL VALUES ('19970710 173201 America/Does_not_exist');
-- Check date conversion and date arithmetic
INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 18:32:01 PDT');

8
src/test/regress/sql/timestamptz.sql
Unescape View File

@ -56,12 +56,12 @@ INSERT INTO TIMESTAMPTZ_TBL VALUES ('19970210 173201 -0800');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('1997-06-10 17:32:01 -07:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2001-09-22T18:19:20');
-- POSIX format
-- POSIX format (note that the timezone abbrev is just decoration here)
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 12:14:03 GMT -2');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 03:14:04 EST+3');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 02:14:05 EST +2:00');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 12:14:03 GMT-2');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 03:14:04 PST+8');
INSERT INTO TIMESTAMPTZ_TBL VALUES ('2000-03-15 02:14:05 MST+7:00');
-- Variations for acceptable input formats
INSERT INTO TIMESTAMPTZ_TBL VALUES ('Feb 10 17:32:01 1997 -0800');

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