mirror of https://github.com/postgres/postgres
Allow interpretation of INTERVALs with more timezone-like syntax.
Define conversions to and from text for date, time, and timetz. Have millisecond and microsecond return full # of seconds in those units. Previously, only returned full fractional part in those units.
This commit is contained in:
Thomas G. Lockhart
parent
ecc367b764
commit
89a99cb686
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.51 2000/10/29 13:17:33 petere Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.52 2000/11/11 19:55:19 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -339,6 +339,61 @@ abstime_date(PG_FUNCTION_ARGS)
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}
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/* date_text()
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* Convert date to text data type.
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*/
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Datum
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date_text(PG_FUNCTION_ARGS)
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{
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/* Input is a Date, but may as well leave it in Datum form */
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Datum date = PG_GETARG_DATUM(0);
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text *result;
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char *str;
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int len;
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str = DatumGetCString(DirectFunctionCall1(date_out, date));
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len = (strlen(str) + VARHDRSZ);
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result = palloc(len);
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VARATT_SIZEP(result) = len;
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memmove(VARDATA(result), str, (len - VARHDRSZ));
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pfree(str);
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PG_RETURN_TEXT_P(result);
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}
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/* text_date()
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* Convert text string to date.
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* Text type is not null terminated, so use temporary string
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* then call the standard input routine.
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*/
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Datum
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text_date(PG_FUNCTION_ARGS)
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{
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text *str = PG_GETARG_TEXT_P(0);
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int i;
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char *sp,
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*dp,
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dstr[MAXDATELEN + 1];
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if (VARSIZE(str) - VARHDRSZ > MAXDATELEN)
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elog(ERROR, "Bad date external representation (too long)");
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sp = VARDATA(str);
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dp = dstr;
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for (i = 0; i < (VARSIZE(str) - VARHDRSZ); i++)
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*dp++ = *sp++;
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*dp = '\0';
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return DirectFunctionCall1(date_in,
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CStringGetDatum(dstr));
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}
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/*****************************************************************************
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* Time ADT
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*****************************************************************************/
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@ -576,6 +631,61 @@ time_interval(PG_FUNCTION_ARGS)
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}
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/* time_text()
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* Convert time to text data type.
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*/
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Datum
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time_text(PG_FUNCTION_ARGS)
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{
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/* Input is a Time, but may as well leave it in Datum form */
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Datum time = PG_GETARG_DATUM(0);
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text *result;
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char *str;
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int len;
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str = DatumGetCString(DirectFunctionCall1(time_out, time));
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len = (strlen(str) + VARHDRSZ);
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result = palloc(len);
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VARATT_SIZEP(result) = len;
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memmove(VARDATA(result), str, (len - VARHDRSZ));
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pfree(str);
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PG_RETURN_TEXT_P(result);
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}
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/* text_time()
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* Convert text string to time.
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* Text type is not null terminated, so use temporary string
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* then call the standard input routine.
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*/
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Datum
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text_time(PG_FUNCTION_ARGS)
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{
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text *str = PG_GETARG_TEXT_P(0);
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int i;
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char *sp,
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*dp,
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dstr[MAXDATELEN + 1];
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if (VARSIZE(str) - VARHDRSZ > MAXDATELEN)
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elog(ERROR, "Bad time external representation (too long)");
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sp = VARDATA(str);
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dp = dstr;
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for (i = 0; i < (VARSIZE(str) - VARHDRSZ); i++)
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*dp++ = *sp++;
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*dp = '\0';
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return DirectFunctionCall1(time_in,
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CStringGetDatum(dstr));
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}
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/*****************************************************************************
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* Time With Time Zone ADT
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*****************************************************************************/
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@ -851,3 +961,58 @@ datetimetz_timestamp(PG_FUNCTION_ARGS)
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PG_RETURN_TIMESTAMP(result);
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}
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/* timetz_text()
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* Convert timetz to text data type.
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*/
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Datum
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timetz_text(PG_FUNCTION_ARGS)
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{
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/* Input is a Timetz, but may as well leave it in Datum form */
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Datum timetz = PG_GETARG_DATUM(0);
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text *result;
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char *str;
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int len;
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str = DatumGetCString(DirectFunctionCall1(timetz_out, timetz));
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len = (strlen(str) + VARHDRSZ);
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result = palloc(len);
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VARATT_SIZEP(result) = len;
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memmove(VARDATA(result), str, (len - VARHDRSZ));
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pfree(str);
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PG_RETURN_TEXT_P(result);
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}
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/* text_timetz()
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* Convert text string to timetz.
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* Text type is not null terminated, so use temporary string
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* then call the standard input routine.
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*/
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Datum
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text_timetz(PG_FUNCTION_ARGS)
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{
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text *str = PG_GETARG_TEXT_P(0);
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int i;
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char *sp,
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*dp,
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dstr[MAXDATELEN + 1];
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if (VARSIZE(str) - VARHDRSZ > MAXDATELEN)
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elog(ERROR, "Bad timetz external representation (too long)");
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sp = VARDATA(str);
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dp = dstr;
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for (i = 0; i < (VARSIZE(str) - VARHDRSZ); i++)
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*dp++ = *sp++;
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*dp = '\0';
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return DirectFunctionCall1(timetz_in,
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CStringGetDatum(dstr));
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}
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.55 2000/11/06 15:57:00 thomas Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.56 2000/11/11 19:55:19 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -494,7 +494,7 @@ ParseDateTime(char *timestr, char *lowstr,
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{
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ftype[nf] = DTK_TZ;
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*lp++ = *cp++;
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while (isdigit((int) *cp) || (*cp == ':'))
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while (isdigit((int) *cp) || (*cp == ':') || (*cp == '.'))
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*lp++ = *cp++;
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/* special? */
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@ -1657,7 +1657,7 @@ DecodeDateDelta(char **field, int *ftype, int nf, int *dtype, struct tm * tm, do
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*dtype = DTK_DELTA;
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type = DTK_SECOND;
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type = IGNORE;
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tm->tm_year = 0;
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tm->tm_mon = 0;
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tm->tm_mday = 0;
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@ -1687,7 +1687,7 @@ DecodeDateDelta(char **field, int *ftype, int nf, int *dtype, struct tm * tm, do
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* So, work this out to drop through to DTK_NUMBER, which *can* tolerate this.
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*/
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cp = field[i]+1;
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while ((*cp != '\0') && (*cp != ':'))
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while ((*cp != '\0') && (*cp != ':') && (*cp != '.'))
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cp++;
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if ((*cp == ':')
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&& (DecodeTime((field[i]+1), fmask, &tmask, tm, fsec) == 0)) {
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@ -1705,6 +1705,14 @@ DecodeDateDelta(char **field, int *ftype, int nf, int *dtype, struct tm * tm, do
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type = DTK_DAY;
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tmask = DTK_M(TZ);
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break;
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} else if (type == IGNORE) {
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if (*cp == '.') {
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/* Got a decimal point? Then assume some sort of seconds specification */
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type = DTK_SECOND;
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} else if (*cp == '\0') {
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/* Only a signed integer? Then must assume a timezone-like usage */
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type = DTK_HOUR;
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}
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}
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/* DROP THROUGH */
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@ -1714,6 +1722,8 @@ DecodeDateDelta(char **field, int *ftype, int nf, int *dtype, struct tm * tm, do
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if (*cp == '.')
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{
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if (type == IGNORE)
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type = DTK_SECOND;
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fval = strtod(cp, &cp);
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if (*cp != '\0')
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return -1;
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.37 2000/11/06 15:57:00 thomas Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.38 2000/11/11 19:55:19 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -2100,11 +2100,11 @@ interval_part(PG_FUNCTION_ARGS)
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switch (val)
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{
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case DTK_MICROSEC:
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result = (fsec * 1000000);
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result = ((tm->tm_sec + fsec) * 1000000);
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break;
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case DTK_MILLISEC:
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result = (fsec * 1000);
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result = ((tm->tm_sec + fsec) * 1000);
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break;
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case DTK_SECOND:
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