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Add 'day' field to INTERVAL so 1 day interval can be distinguished from

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24 hours. This is very helpful for daylight savings time:

	select '2005-05-03 00:00:00 EST'::timestamp with time zone + '24 hours';
	      ?column?
	----------------------
	2005-05-04 01:00:00-04

	select '2005-05-03 00:00:00 EST'::timestamp with time zone + '1 day';
	      ?column?
	----------------------
	2005-05-04 01:00:00-04

Michael Glaesemann
This commit is contained in:
Bruce Momjian
2005-07-20 16:42:32 +00:00
parent 826604f9e6
commit db05f4a7eb
12 changed files with 286 additions and 181 deletions
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10
src/interfaces/ecpg/pgtypeslib/interval.c
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@@ -33,7 +33,7 @@ TrimTrailingZeros(char *str)
* can be used to represent time spans.
*/
static int
DecodeTime(char *str, int fmask, int *tmask, struct tm * tm, fsec_t *fsec)
DecodeTime(char *str, int fmask, int *tmask, struct tm *tm, fsec_t *fsec)
{
char *cp;
@@ -107,7 +107,7 @@ DecodeTime(char *str, int fmask, int *tmask, struct tm * tm, fsec_t *fsec)
* preceding an hh:mm:ss field. - thomas 1998-04-30
*/
int
DecodeInterval(char **field, int *ftype, int nf, int *dtype, struct tm * tm, fsec_t *fsec)
DecodeInterval(char **field, int *ftype, int nf, int *dtype, struct tm *tm, fsec_t *fsec)
{
int is_before = FALSE;
@@ -445,7 +445,7 @@ DecodeInterval(char **field, int *ftype, int nf, int *dtype, struct tm * tm, fse
* - thomas 1998-04-30
*/
int
EncodeInterval(struct tm * tm, fsec_t fsec, int style, char *str)
EncodeInterval(struct tm *tm, fsec_t fsec, int style, char *str)
{
int is_before = FALSE;
int is_nonzero = FALSE;
@@ -670,7 +670,7 @@ EncodeInterval(struct tm * tm, fsec_t fsec, int style, char *str)
* Convert a interval data type to a tm structure.
*/
static int
interval2tm(interval span, struct tm * tm, fsec_t *fsec)
interval2tm(interval span, struct tm *tm, fsec_t *fsec)
{
#ifdef HAVE_INT64_TIMESTAMP
int64 time;
@@ -713,7 +713,7 @@ interval2tm(interval span, struct tm * tm, fsec_t *fsec)
} /* interval2tm() */
static int
tm2interval(struct tm * tm, fsec_t fsec, interval *span)
tm2interval(struct tm *tm, fsec_t fsec, interval *span)
{
span->month = tm->tm_year * 12 + tm->tm_mon;
#ifdef HAVE_INT64_TIMESTAMP