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to_char(): Do not count negative sign as a digit for time values 

For time masks, like HH24, MI, SS, CC, MM, do not count the negative
sign as part of the zero-padding length specified by the mask, e.g. have
to_char('-4 years'::interval, 'YY') return '-04', not '-4'.

Report by Craig Ringer
This commit is contained in:
Bruce Momjian 2015-10-05 20:51:46 -04:00
parent 6d8b2aa83a
commit 2d87eedc1d
3 changed files with 24 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
src/backend/utils/adt/formatting.c
View File

@ -2426,7 +2426,7 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
* display time as shown on a 12-hour clock, even for
* intervals
*/
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2,
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_hour >= 0) ? 2 : 3,
tm->tm_hour % (HOURS_PER_DAY / 2) == 0 ? HOURS_PER_DAY / 2 :
tm->tm_hour % (HOURS_PER_DAY / 2));
if (S_THth(n->suffix))
@ -2434,19 +2434,22 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
s += strlen(s);
break;
case DCH_HH24:
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, tm->tm_hour);
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_hour >= 0) ? 2 : 3,
tm->tm_hour);
if (S_THth(n->suffix))
str_numth(s, s, S_TH_TYPE(n->suffix));
s += strlen(s);
break;
case DCH_MI:
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, tm->tm_min);
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_min >= 0) ? 2 : 3,
tm->tm_min);
if (S_THth(n->suffix))
str_numth(s, s, S_TH_TYPE(n->suffix));
s += strlen(s);
break;
case DCH_SS:
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, tm->tm_sec);
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_sec >= 0) ? 2 : 3,
tm->tm_sec);
if (S_THth(n->suffix))
str_numth(s, s, S_TH_TYPE(n->suffix));
s += strlen(s);
@ -2503,7 +2506,8 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
break;
case DCH_OF:
INVALID_FOR_INTERVAL;
sprintf(s, "%+0*d", S_FM(n->suffix) ? 0 : 3, (int) tm->tm_gmtoff / SECS_PER_HOUR);
sprintf(s, "%+0*d", S_FM(n->suffix) ? 0 : (tm->tm_gmtoff >= 0) ? 3 : 4,
(int) tm->tm_gmtoff / SECS_PER_HOUR);
s += strlen(s);
if ((int) tm->tm_gmtoff % SECS_PER_HOUR != 0)
{
@ -2653,7 +2657,8 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
s += strlen(s);
break;
case DCH_MM:
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, tm->tm_mon);
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_mon >= 0) ? 2 : 3,
tm->tm_mon);
if (S_THth(n->suffix))
str_numth(s, s, S_TH_TYPE(n->suffix));
s += strlen(s);
@ -2828,7 +2833,7 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
i = tm->tm_year / 100 - 1;
}
if (i <= 99 && i >= -99)
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, i);
sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (i >= 0) ? 2 : 3, i);
else
sprintf(s, "%d", i);
if (S_THth(n->suffix))
@ -2846,7 +2851,8 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
case DCH_YYYY:
case DCH_IYYY:
sprintf(s, "%0*d",
S_FM(n->suffix) ? 0 : 4,
S_FM(n->suffix) ? 0 :
(ADJUST_YEAR(tm->tm_year, is_interval) >= 0) ? 4 : 5,
(n->key->id == DCH_YYYY ?
ADJUST_YEAR(tm->tm_year, is_interval) :
ADJUST_YEAR(date2isoyear(tm->tm_year,
@ -2860,7 +2866,8 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
case DCH_YYY:
case DCH_IYY:
sprintf(s, "%0*d",
S_FM(n->suffix) ? 0 : 3,
S_FM(n->suffix) ? 0 :
(ADJUST_YEAR(tm->tm_year, is_interval) >= 0) ? 3 : 4,
(n->key->id == DCH_YYY ?
ADJUST_YEAR(tm->tm_year, is_interval) :
ADJUST_YEAR(date2isoyear(tm->tm_year,
@ -2874,7 +2881,8 @@ DCH_to_char(FormatNode *node, bool is_interval, TmToChar *in, char *out, Oid col
case DCH_YY:
case DCH_IY:
sprintf(s, "%0*d",
S_FM(n->suffix) ? 0 : 2,
S_FM(n->suffix) ? 0 :
(ADJUST_YEAR(tm->tm_year, is_interval) >= 0) ? 2 : 3,
(n->key->id == DCH_YY ?
ADJUST_YEAR(tm->tm_year, is_interval) :
ADJUST_YEAR(date2isoyear(tm->tm_year,

6
src/test/regress/expected/timestamp.out
View File

@ -948,8 +948,8 @@ SELECT '' AS to_char_2, to_char(d1, 'FMDAY FMDay FMday FMMONTH FMMonth FMmonth F
SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J')
FROM TIMESTAMP_TBL;
to_char_3 | to_char
-----------+-------------------------------------------------
to_char_3 | to_char
-----------+--------------------------------------------------
|
|
| 1,970 1970 970 70 0 20 1 01 01 001 01 5 2440588
@ -992,7 +992,7 @@ SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J')
| 1,997 1997 997 97 7 20 1 02 07 045 14 6 2450494
| 1,997 1997 997 97 7 20 1 02 07 046 15 7 2450495
| 1,997 1997 997 97 7 20 1 02 07 047 16 1 2450496
| 0,097 0097 097 97 7 -1 1 02 07 047 16 3 1686042
| 0,097 0097 097 97 7 -01 1 02 07 047 16 3 1686042
| 0,097 0097 097 97 7 01 1 02 07 047 16 7 1756536
| 0,597 0597 597 97 7 06 1 02 07 047 16 5 1939157
| 1,097 1097 097 97 7 11 1 02 07 047 16 3 2121778

6
src/test/regress/expected/timestamptz.out
View File

@ -1029,8 +1029,8 @@ SELECT '' AS to_char_2, to_char(d1, 'FMDAY FMDay FMday FMMONTH FMMonth FMmonth F
SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J')
FROM TIMESTAMPTZ_TBL;
to_char_3 | to_char
-----------+-------------------------------------------------
to_char_3 | to_char
-----------+--------------------------------------------------
|
|
| 1,969 1969 969 69 9 20 4 12 53 365 31 4 2440587
@ -1074,7 +1074,7 @@ SELECT '' AS to_char_3, to_char(d1, 'Y,YYY YYYY YYY YY Y CC Q MM WW DDD DD D J')
| 1,997 1997 997 97 7 20 1 02 07 045 14 6 2450494
| 1,997 1997 997 97 7 20 1 02 07 046 15 7 2450495
| 1,997 1997 997 97 7 20 1 02 07 047 16 1 2450496
| 0,097 0097 097 97 7 -1 1 02 07 047 16 3 1686042
| 0,097 0097 097 97 7 -01 1 02 07 047 16 3 1686042
| 0,097 0097 097 97 7 01 1 02 07 047 16 7 1756536
| 0,597 0597 597 97 7 06 1 02 07 047 16 5 1939157
| 1,097 1097 097 97 7 11 1 02 07 047 16 3 2121778