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/*------------------------------------------------------------------------- * * timestamp.h * Definitions for the SQL92 "timestamp" and "interval" types. * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/utils/timestamp.h * *------------------------------------------------------------------------- */ #ifndef TIMESTAMP_H #define TIMESTAMP_H #include "datatype/timestamp.h" #include "fmgr.h" #include "pgtime.h" /* * Macros for fmgr-callable functions. * * For Timestamp, we make use of the same support routines as for int64 * or float8. Therefore Timestamp is pass-by-reference if and only if * int64 or 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) DatumGetTimestamp(PG_GETARG_DATUM(n)) #define PG_GETARG_TIMESTAMPTZ(n) DatumGetTimestampTz(PG_GETARG_DATUM(n)) #define PG_GETARG_INTERVAL_P(n) DatumGetIntervalP(PG_GETARG_DATUM(n)) #define PG_RETURN_TIMESTAMP(x) return TimestampGetDatum(x) #define PG_RETURN_TIMESTAMPTZ(x) return TimestampTzGetDatum(x) #define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x) #else /* !HAVE_INT64_TIMESTAMP */ #define DatumGetTimestamp(X) ((Timestamp) DatumGetFloat8(X)) #define DatumGetTimestampTz(X) ((TimestampTz) DatumGetFloat8(X)) #define DatumGetIntervalP(X) ((Interval *) DatumGetPointer(X)) #define TimestampGetDatum(X) Float8GetDatum(X) #define TimestampTzGetDatum(X) Float8GetDatum(X) #define IntervalPGetDatum(X) PointerGetDatum(X) #define PG_GETARG_TIMESTAMP(n) DatumGetTimestamp(PG_GETARG_DATUM(n)) #define PG_GETARG_TIMESTAMPTZ(n) DatumGetTimestampTz(PG_GETARG_DATUM(n)) #define PG_GETARG_INTERVAL_P(n) DatumGetIntervalP(PG_GETARG_DATUM(n)) #define PG_RETURN_TIMESTAMP(x) return TimestampGetDatum(x) #define PG_RETURN_TIMESTAMPTZ(x) return TimestampTzGetDatum(x) #define PG_RETURN_INTERVAL_P(x) return IntervalPGetDatum(x) #endif /* HAVE_INT64_TIMESTAMP */ #define TIMESTAMP_MASK(b) (1 << (b)) #define INTERVAL_MASK(b) (1 << (b)) /* Macros to handle packing and unpacking the typmod field for intervals */ #define INTERVAL_FULL_RANGE (0x7FFF) #define INTERVAL_RANGE_MASK (0x7FFF) #define INTERVAL_FULL_PRECISION (0xFFFF) #define INTERVAL_PRECISION_MASK (0xFFFF) #define INTERVAL_TYPMOD(p,r) ((((r) & INTERVAL_RANGE_MASK) << 16) | ((p) & INTERVAL_PRECISION_MASK)) #define INTERVAL_PRECISION(t) ((t) & INTERVAL_PRECISION_MASK) #define INTERVAL_RANGE(t) (((t) >> 16) & INTERVAL_RANGE_MASK) #ifdef HAVE_INT64_TIMESTAMP #define TimestampTzPlusMilliseconds(tz,ms) ((tz) + ((ms) * (int64) 1000)) #else #define TimestampTzPlusMilliseconds(tz,ms) ((tz) + ((ms) / 1000.0)) #endif /* Set at postmaster start */ extern TimestampTz PgStartTime; /* Set at configuration reload */ extern TimestampTz PgReloadTime; /* * timestamp.c prototypes */ extern Datum timestamp_in(PG_FUNCTION_ARGS); extern Datum timestamp_out(PG_FUNCTION_ARGS); extern Datum timestamp_recv(PG_FUNCTION_ARGS); extern Datum timestamp_send(PG_FUNCTION_ARGS); extern Datum timestamptypmodin(PG_FUNCTION_ARGS); extern Datum timestamptypmodout(PG_FUNCTION_ARGS); extern Datum timestamp_transform(PG_FUNCTION_ARGS); extern Datum timestamp_scale(PG_FUNCTION_ARGS); extern Datum timestamp_eq(PG_FUNCTION_ARGS); extern Datum timestamp_ne(PG_FUNCTION_ARGS); extern Datum timestamp_lt(PG_FUNCTION_ARGS); extern Datum timestamp_le(PG_FUNCTION_ARGS); extern Datum timestamp_ge(PG_FUNCTION_ARGS); extern Datum timestamp_gt(PG_FUNCTION_ARGS); extern Datum timestamp_finite(PG_FUNCTION_ARGS); extern Datum timestamp_cmp(PG_FUNCTION_ARGS); extern Datum timestamp_sortsupport(PG_FUNCTION_ARGS); extern Datum timestamp_hash(PG_FUNCTION_ARGS); extern Datum timestamp_smaller(PG_FUNCTION_ARGS); extern Datum timestamp_larger(PG_FUNCTION_ARGS); extern Datum timestamp_eq_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamp_ne_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamp_lt_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamp_le_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamp_gt_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamp_ge_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamp_cmp_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamptz_eq_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_ne_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_lt_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_le_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_gt_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_ge_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_cmp_timestamp(PG_FUNCTION_ARGS); extern Datum interval_in(PG_FUNCTION_ARGS); extern Datum interval_out(PG_FUNCTION_ARGS); extern Datum interval_recv(PG_FUNCTION_ARGS); extern Datum interval_send(PG_FUNCTION_ARGS); extern Datum intervaltypmodin(PG_FUNCTION_ARGS); extern Datum intervaltypmodout(PG_FUNCTION_ARGS); extern Datum interval_transform(PG_FUNCTION_ARGS); extern Datum interval_scale(PG_FUNCTION_ARGS); extern Datum interval_eq(PG_FUNCTION_ARGS); extern Datum interval_ne(PG_FUNCTION_ARGS); extern Datum interval_lt(PG_FUNCTION_ARGS); extern Datum interval_le(PG_FUNCTION_ARGS); extern Datum interval_ge(PG_FUNCTION_ARGS); extern Datum interval_gt(PG_FUNCTION_ARGS); extern Datum interval_finite(PG_FUNCTION_ARGS); extern Datum interval_cmp(PG_FUNCTION_ARGS); extern Datum interval_hash(PG_FUNCTION_ARGS); extern Datum interval_smaller(PG_FUNCTION_ARGS); extern Datum interval_larger(PG_FUNCTION_ARGS); extern Datum interval_justify_interval(PG_FUNCTION_ARGS); extern Datum interval_justify_hours(PG_FUNCTION_ARGS); extern Datum interval_justify_days(PG_FUNCTION_ARGS); extern Datum timestamp_trunc(PG_FUNCTION_ARGS); extern Datum interval_trunc(PG_FUNCTION_ARGS); extern Datum timestamp_part(PG_FUNCTION_ARGS); extern Datum interval_part(PG_FUNCTION_ARGS); extern Datum timestamp_zone(PG_FUNCTION_ARGS); extern Datum timestamp_izone(PG_FUNCTION_ARGS); extern Datum timestamp_timestamptz(PG_FUNCTION_ARGS); extern Datum timestamptz_in(PG_FUNCTION_ARGS); extern Datum timestamptz_out(PG_FUNCTION_ARGS); extern Datum timestamptz_recv(PG_FUNCTION_ARGS); extern Datum timestamptz_send(PG_FUNCTION_ARGS); extern Datum timestamptztypmodin(PG_FUNCTION_ARGS); extern Datum timestamptztypmodout(PG_FUNCTION_ARGS); extern Datum timestamptz_scale(PG_FUNCTION_ARGS); extern Datum timestamptz_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_zone(PG_FUNCTION_ARGS); extern Datum timestamptz_izone(PG_FUNCTION_ARGS); extern Datum timestamptz_timestamptz(PG_FUNCTION_ARGS); extern Datum interval_um(PG_FUNCTION_ARGS); extern Datum interval_pl(PG_FUNCTION_ARGS); extern Datum interval_mi(PG_FUNCTION_ARGS); extern Datum interval_mul(PG_FUNCTION_ARGS); extern Datum mul_d_interval(PG_FUNCTION_ARGS); extern Datum interval_div(PG_FUNCTION_ARGS); extern Datum interval_accum(PG_FUNCTION_ARGS); extern Datum interval_avg(PG_FUNCTION_ARGS); extern Datum timestamp_mi(PG_FUNCTION_ARGS); extern Datum timestamp_pl_interval(PG_FUNCTION_ARGS); extern Datum timestamp_mi_interval(PG_FUNCTION_ARGS); extern Datum timestamp_age(PG_FUNCTION_ARGS); extern Datum overlaps_timestamp(PG_FUNCTION_ARGS); extern Datum timestamptz_pl_interval(PG_FUNCTION_ARGS); extern Datum timestamptz_mi_interval(PG_FUNCTION_ARGS); extern Datum timestamptz_age(PG_FUNCTION_ARGS); extern Datum timestamptz_trunc(PG_FUNCTION_ARGS); extern Datum timestamptz_part(PG_FUNCTION_ARGS); extern Datum now(PG_FUNCTION_ARGS); extern Datum statement_timestamp(PG_FUNCTION_ARGS); extern Datum clock_timestamp(PG_FUNCTION_ARGS); extern Datum pg_postmaster_start_time(PG_FUNCTION_ARGS); extern Datum pg_conf_load_time(PG_FUNCTION_ARGS); extern Datum generate_series_timestamp(PG_FUNCTION_ARGS); extern Datum generate_series_timestamptz(PG_FUNCTION_ARGS); /* Internal routines (not fmgr-callable) */ extern TimestampTz GetCurrentTimestamp(void); extern void TimestampDifference(TimestampTz start_time, TimestampTz stop_time, long *secs, int *microsecs); extern bool TimestampDifferenceExceeds(TimestampTz start_time, TimestampTz stop_time, int msec); extern TimestampTz time_t_to_timestamptz(pg_time_t tm); extern pg_time_t timestamptz_to_time_t(TimestampTz t); extern const char *timestamptz_to_str(TimestampTz t); extern int tm2timestamp(struct pg_tm * tm, fsec_t fsec, int *tzp, Timestamp *dt); extern int timestamp2tm(Timestamp dt, int *tzp, struct pg_tm * tm, fsec_t *fsec, const char **tzn, pg_tz *attimezone); extern void dt2time(Timestamp dt, int *hour, int *min, int *sec, fsec_t *fsec); extern int interval2tm(Interval span, struct pg_tm * tm, fsec_t *fsec); extern int tm2interval(struct pg_tm * tm, fsec_t fsec, Interval *span); extern Timestamp SetEpochTimestamp(void); extern void GetEpochTime(struct pg_tm * tm); extern int timestamp_cmp_internal(Timestamp dt1, Timestamp dt2); /* timestamp comparison works for timestamptz also */ #define timestamptz_cmp_internal(dt1,dt2) timestamp_cmp_internal(dt1, dt2) extern int isoweek2j(int year, int week); extern void isoweek2date(int woy, int *year, int *mon, int *mday); extern void isoweekdate2date(int isoweek, int isowday, int *year, int *mon, int *mday); extern int date2isoweek(int year, int mon, int mday); extern int date2isoyear(int year, int mon, int mday); extern int date2isoyearday(int year, int mon, int mday); #endif /* TIMESTAMP_H */