diff options
Diffstat (limited to 'src/include/utils/timestamp.h')
| -rw-r--r-- | src/include/utils/timestamp.h | 69 |
1 files changed, 56 insertions, 13 deletions
diff --git a/src/include/utils/timestamp.h b/src/include/utils/timestamp.h index 3ea20f3ea24..a4da9dd5d6b 100644 --- a/src/include/utils/timestamp.h +++ b/src/include/utils/timestamp.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: timestamp.h,v 1.24 2001/11/05 17:46:36 momjian Exp $ + * $Id: timestamp.h,v 1.25 2002/04/21 19:48:31 thomas Exp $ * *------------------------------------------------------------------------- */ @@ -18,8 +18,11 @@ #include <limits.h> #include <float.h> +#include "c.h" #include "fmgr.h" - +#ifdef HAVE_INT64_TIMESTAMP +#include "utils/int8.h" +#endif /* * Timestamp represents absolute time. @@ -31,16 +34,22 @@ * consisting of a beginning and ending time, not a time span - thomas 97/03/20 */ +#ifdef HAVE_INT64_TIMESTAMP +typedef int64 Timestamp; +typedef int64 TimestampTz; +#else typedef double Timestamp; - typedef double TimestampTz; +#endif typedef struct { - double time; /* all time units other than months and - * years */ - int32 month; /* months and years, after time for - * alignment */ +#ifdef HAVE_INT64_TIMESTAMP + int64 time; /* all time units other than months and years */ +#else + double time; /* all time units other than months and years */ +#endif + int32 month; /* months and years, after time for alignment */ } Interval; @@ -50,6 +59,27 @@ typedef struct * For Timestamp, we make use of the same support routines as for float8. * Therefore Timestamp is pass-by-reference if and only if float8 is! */ +#ifdef HAVE_INT64_TIMESTAMP +#define DatumGetTimestamp(X) ((Timestamp) DatumGetInt64(X)) +#define DatumGetTimestampTz(X) ((TimestampTz) DatumGetInt64(X)) +#define DatumGetIntervalP(X) ((Interval *) DatumGetPointer(X)) + +#define TimestampGetDatum(X) Int64GetDatum(X) +#define TimestampTzGetDatum(X) Int64GetDatum(X) +#define IntervalPGetDatum(X) PointerGetDatum(X) + +#define PG_GETARG_TIMESTAMP(n) PG_GETARG_INT64(n) +#define PG_GETARG_TIMESTAMPTZ(n) PG_GETARG_INT64(n) +#define PG_GETARG_INTERVAL_P(n) DatumGetIntervalP(PG_GETARG_DATUM(n)) + +#define PG_RETURN_TIMESTAMP(x) PG_RETURN_INT64(x) +#define PG_RETURN_TIMESTAMPTZ(x) PG_RETURN_INT64(x) +#define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x) + +#define DT_NOBEGIN (-INT64CONST(0x7fffffffffffffff) - 1) +#define DT_NOEND (INT64CONST(0x7fffffffffffffff)) + +#else #define DatumGetTimestamp(X) ((Timestamp) DatumGetFloat8(X)) #define DatumGetTimestampTz(X) ((TimestampTz) DatumGetFloat8(X)) #define DatumGetIntervalP(X) ((Interval *) DatumGetPointer(X)) @@ -66,7 +96,6 @@ typedef struct #define PG_RETURN_TIMESTAMPTZ(x) return TimestampTzGetDatum(x) #define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x) - #ifdef HUGE_VAL #define DT_NOBEGIN (-HUGE_VAL) #define DT_NOEND (HUGE_VAL) @@ -74,6 +103,7 @@ typedef struct #define DT_NOBEGIN (-DBL_MAX) #define DT_NOEND (DBL_MAX) #endif +#endif #define TIMESTAMP_NOBEGIN(j) do {j = DT_NOBEGIN;} while (0) #define TIMESTAMP_IS_NOBEGIN(j) ((j) == DT_NOBEGIN) @@ -83,8 +113,21 @@ typedef struct #define TIMESTAMP_NOT_FINITE(j) (TIMESTAMP_IS_NOBEGIN(j) || TIMESTAMP_IS_NOEND(j)) + +#define MAX_TIMESTAMP_PRECISION 6 +#define MAX_INTERVAL_PRECISION 6 + +#ifdef HAVE_INT64_TIMESTAMP +typedef int32 fsec_t; + +#define SECONDS_TO_TIMESTAMP(x) (INT64CONST(x000000)) +#else +typedef double fsec_t; + +#define SECONDS_TO_TIMESTAMP(x) (xe0) #define TIME_PREC_INV 1000000.0 #define JROUND(j) (rint(((double) (j))*TIME_PREC_INV)/TIME_PREC_INV) +#endif /* @@ -167,13 +210,13 @@ extern Datum now(PG_FUNCTION_ARGS); /* Internal routines (not fmgr-callable) */ -extern int tm2timestamp(struct tm * tm, double fsec, int *tzp, Timestamp *dt); +extern int tm2timestamp(struct tm * tm, fsec_t fsec, int *tzp, Timestamp *dt); extern int timestamp2tm(Timestamp dt, int *tzp, struct tm * tm, - double *fsec, char **tzn); -extern void dt2time(Timestamp dt, int *hour, int *min, double *sec); + fsec_t *fsec, char **tzn); +extern void dt2time(Timestamp dt, int *hour, int *min, int *sec, fsec_t *fsec); -extern int interval2tm(Interval span, struct tm * tm, float8 *fsec); -extern int tm2interval(struct tm * tm, double fsec, Interval *span); +extern int interval2tm(Interval span, struct tm * tm, fsec_t *fsec); +extern int tm2interval(struct tm * tm, fsec_t fsec, Interval *span); extern Timestamp SetEpochTimestamp(void); extern void GetEpochTime(struct tm * tm); |