Eneboo - Documentación para desarrolladores: Fichero Fuente src/libpq/include/utils/date.h

Eneboo - Documentación para desarrolladores
00001 /*-------------------------------------------------------------------------
00002  *
00003  * date.h
00004  *        Definitions for the SQL92 "date" and "time" types.
00005  *
00006  *
00007  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
00008  * Portions Copyright (c) 1994, Regents of the University of California
00009  *
00010  * $PostgreSQL: pgsql/src/include/utils/date.h,v 1.32 2005/10/15 02:49:46 momjian Exp $
00011  *
00012  *-------------------------------------------------------------------------
00013  */
00014 #ifndef DATE_H
00015 #define DATE_H
00016 
00017 #include "fmgr.h"
00018 
00019 
00020 typedef int32 DateADT;
00021 
00022 #ifdef HAVE_INT64_TIMESTAMP
00023 typedef int64 TimeADT;
00024 #else
00025 typedef float8 TimeADT;
00026 #endif
00027 
00028 typedef struct
00029 {
00030 #ifdef HAVE_INT64_TIMESTAMP
00031         int64           time;                   /* all time units other than months and years */
00032 #else
00033         double          time;                   /* all time units other than months and years */
00034 #endif
00035         int32           zone;                   /* numeric time zone, in seconds */
00036 } TimeTzADT;
00037 
00038 /*
00039  * Macros for fmgr-callable functions.
00040  *
00041  * For TimeADT, we make use of the same support routines as for float8 or int64.
00042  * Therefore TimeADT is pass-by-reference if and only if float8 or int64 is!
00043  */
00044 #ifdef HAVE_INT64_TIMESTAMP
00045 
00046 #define MAX_TIME_PRECISION 6
00047 
00048 #define DatumGetDateADT(X)        ((DateADT) DatumGetInt32(X))
00049 #define DatumGetTimeADT(X)        ((TimeADT) DatumGetInt64(X))
00050 #define DatumGetTimeTzADTP(X) ((TimeTzADT *) DatumGetPointer(X))
00051 
00052 #define DateADTGetDatum(X)        Int32GetDatum(X)
00053 #define TimeADTGetDatum(X)        Int64GetDatum(X)
00054 #define TimeTzADTPGetDatum(X) PointerGetDatum(X)
00055 #else
00056 
00057 #define MAX_TIME_PRECISION 10
00058 
00059 /* round off to MAX_TIME_PRECISION decimal places */
00060 #define TIME_PREC_INV 10000000000.0
00061 #define TIMEROUND(j) (rint(((double) (j)) * TIME_PREC_INV) / TIME_PREC_INV)
00062 
00063 #define DatumGetDateADT(X)        ((DateADT) DatumGetInt32(X))
00064 #define DatumGetTimeADT(X)        ((TimeADT) DatumGetFloat8(X))
00065 #define DatumGetTimeTzADTP(X) ((TimeTzADT *) DatumGetPointer(X))
00066 
00067 #define DateADTGetDatum(X)        Int32GetDatum(X)
00068 #define TimeADTGetDatum(X)        Float8GetDatum(X)
00069 #define TimeTzADTPGetDatum(X) PointerGetDatum(X)
00070 #endif   /* HAVE_INT64_TIMESTAMP */
00071 
00072 #define PG_GETARG_DATEADT(n)     DatumGetDateADT(PG_GETARG_DATUM(n))
00073 #define PG_GETARG_TIMEADT(n)     DatumGetTimeADT(PG_GETARG_DATUM(n))
00074 #define PG_GETARG_TIMETZADT_P(n) DatumGetTimeTzADTP(PG_GETARG_DATUM(n))
00075 
00076 #define PG_RETURN_DATEADT(x)     return DateADTGetDatum(x)
00077 #define PG_RETURN_TIMEADT(x)     return TimeADTGetDatum(x)
00078 #define PG_RETURN_TIMETZADT_P(x) return TimeTzADTPGetDatum(x)
00079 
00080 
00081 /* date.c */
00082 extern Datum date_in(PG_FUNCTION_ARGS);
00083 extern Datum date_out(PG_FUNCTION_ARGS);
00084 extern Datum date_recv(PG_FUNCTION_ARGS);
00085 extern Datum date_send(PG_FUNCTION_ARGS);
00086 extern Datum date_eq(PG_FUNCTION_ARGS);
00087 extern Datum date_ne(PG_FUNCTION_ARGS);
00088 extern Datum date_lt(PG_FUNCTION_ARGS);
00089 extern Datum date_le(PG_FUNCTION_ARGS);
00090 extern Datum date_gt(PG_FUNCTION_ARGS);
00091 extern Datum date_ge(PG_FUNCTION_ARGS);
00092 extern Datum date_cmp(PG_FUNCTION_ARGS);
00093 extern Datum date_larger(PG_FUNCTION_ARGS);
00094 extern Datum date_smaller(PG_FUNCTION_ARGS);
00095 extern Datum date_mi(PG_FUNCTION_ARGS);
00096 extern Datum date_pli(PG_FUNCTION_ARGS);
00097 extern Datum date_mii(PG_FUNCTION_ARGS);
00098 extern Datum date_eq_timestamp(PG_FUNCTION_ARGS);
00099 extern Datum date_ne_timestamp(PG_FUNCTION_ARGS);
00100 extern Datum date_lt_timestamp(PG_FUNCTION_ARGS);
00101 extern Datum date_le_timestamp(PG_FUNCTION_ARGS);
00102 extern Datum date_gt_timestamp(PG_FUNCTION_ARGS);
00103 extern Datum date_ge_timestamp(PG_FUNCTION_ARGS);
00104 extern Datum date_cmp_timestamp(PG_FUNCTION_ARGS);
00105 extern Datum date_eq_timestamptz(PG_FUNCTION_ARGS);
00106 extern Datum date_ne_timestamptz(PG_FUNCTION_ARGS);
00107 extern Datum date_lt_timestamptz(PG_FUNCTION_ARGS);
00108 extern Datum date_le_timestamptz(PG_FUNCTION_ARGS);
00109 extern Datum date_gt_timestamptz(PG_FUNCTION_ARGS);
00110 extern Datum date_ge_timestamptz(PG_FUNCTION_ARGS);
00111 extern Datum date_cmp_timestamptz(PG_FUNCTION_ARGS);
00112 extern Datum timestamp_eq_date(PG_FUNCTION_ARGS);
00113 extern Datum timestamp_ne_date(PG_FUNCTION_ARGS);
00114 extern Datum timestamp_lt_date(PG_FUNCTION_ARGS);
00115 extern Datum timestamp_le_date(PG_FUNCTION_ARGS);
00116 extern Datum timestamp_gt_date(PG_FUNCTION_ARGS);
00117 extern Datum timestamp_ge_date(PG_FUNCTION_ARGS);
00118 extern Datum timestamp_cmp_date(PG_FUNCTION_ARGS);
00119 extern Datum timestamptz_eq_date(PG_FUNCTION_ARGS);
00120 extern Datum timestamptz_ne_date(PG_FUNCTION_ARGS);
00121 extern Datum timestamptz_lt_date(PG_FUNCTION_ARGS);
00122 extern Datum timestamptz_le_date(PG_FUNCTION_ARGS);
00123 extern Datum timestamptz_gt_date(PG_FUNCTION_ARGS);
00124 extern Datum timestamptz_ge_date(PG_FUNCTION_ARGS);
00125 extern Datum timestamptz_cmp_date(PG_FUNCTION_ARGS);
00126 extern Datum date_pl_interval(PG_FUNCTION_ARGS);
00127 extern Datum date_mi_interval(PG_FUNCTION_ARGS);
00128 extern Datum date_timestamp(PG_FUNCTION_ARGS);
00129 extern Datum timestamp_date(PG_FUNCTION_ARGS);
00130 extern Datum date_timestamptz(PG_FUNCTION_ARGS);
00131 extern Datum timestamptz_date(PG_FUNCTION_ARGS);
00132 extern Datum datetime_timestamp(PG_FUNCTION_ARGS);
00133 extern Datum abstime_date(PG_FUNCTION_ARGS);
00134 extern Datum text_date(PG_FUNCTION_ARGS);
00135 extern Datum date_text(PG_FUNCTION_ARGS);
00136 
00137 extern Datum time_in(PG_FUNCTION_ARGS);
00138 extern Datum time_out(PG_FUNCTION_ARGS);
00139 extern Datum time_recv(PG_FUNCTION_ARGS);
00140 extern Datum time_send(PG_FUNCTION_ARGS);
00141 extern Datum time_scale(PG_FUNCTION_ARGS);
00142 extern Datum time_eq(PG_FUNCTION_ARGS);
00143 extern Datum time_ne(PG_FUNCTION_ARGS);
00144 extern Datum time_lt(PG_FUNCTION_ARGS);
00145 extern Datum time_le(PG_FUNCTION_ARGS);
00146 extern Datum time_gt(PG_FUNCTION_ARGS);
00147 extern Datum time_ge(PG_FUNCTION_ARGS);
00148 extern Datum time_cmp(PG_FUNCTION_ARGS);
00149 extern Datum overlaps_time(PG_FUNCTION_ARGS);
00150 extern Datum time_larger(PG_FUNCTION_ARGS);
00151 extern Datum time_smaller(PG_FUNCTION_ARGS);
00152 extern Datum time_mi_time(PG_FUNCTION_ARGS);
00153 extern Datum timestamp_time(PG_FUNCTION_ARGS);
00154 extern Datum timestamptz_time(PG_FUNCTION_ARGS);
00155 extern Datum time_interval(PG_FUNCTION_ARGS);
00156 extern Datum interval_time(PG_FUNCTION_ARGS);
00157 extern Datum text_time(PG_FUNCTION_ARGS);
00158 extern Datum time_text(PG_FUNCTION_ARGS);
00159 extern Datum time_pl_interval(PG_FUNCTION_ARGS);
00160 extern Datum time_mi_interval(PG_FUNCTION_ARGS);
00161 extern Datum time_part(PG_FUNCTION_ARGS);
00162 
00163 extern Datum timetz_in(PG_FUNCTION_ARGS);
00164 extern Datum timetz_out(PG_FUNCTION_ARGS);
00165 extern Datum timetz_recv(PG_FUNCTION_ARGS);
00166 extern Datum timetz_send(PG_FUNCTION_ARGS);
00167 extern Datum timetz_scale(PG_FUNCTION_ARGS);
00168 extern Datum timetz_eq(PG_FUNCTION_ARGS);
00169 extern Datum timetz_ne(PG_FUNCTION_ARGS);
00170 extern Datum timetz_lt(PG_FUNCTION_ARGS);
00171 extern Datum timetz_le(PG_FUNCTION_ARGS);
00172 extern Datum timetz_gt(PG_FUNCTION_ARGS);
00173 extern Datum timetz_ge(PG_FUNCTION_ARGS);
00174 extern Datum timetz_cmp(PG_FUNCTION_ARGS);
00175 extern Datum timetz_hash(PG_FUNCTION_ARGS);
00176 extern Datum overlaps_timetz(PG_FUNCTION_ARGS);
00177 extern Datum timetz_larger(PG_FUNCTION_ARGS);
00178 extern Datum timetz_smaller(PG_FUNCTION_ARGS);
00179 extern Datum timetz_time(PG_FUNCTION_ARGS);
00180 extern Datum time_timetz(PG_FUNCTION_ARGS);
00181 extern Datum timestamptz_timetz(PG_FUNCTION_ARGS);
00182 extern Datum datetimetz_timestamptz(PG_FUNCTION_ARGS);
00183 extern Datum text_timetz(PG_FUNCTION_ARGS);
00184 extern Datum timetz_text(PG_FUNCTION_ARGS);
00185 extern Datum timetz_part(PG_FUNCTION_ARGS);
00186 extern Datum timetz_zone(PG_FUNCTION_ARGS);
00187 extern Datum timetz_izone(PG_FUNCTION_ARGS);
00188 extern Datum timetz_pl_interval(PG_FUNCTION_ARGS);
00189 extern Datum timetz_mi_interval(PG_FUNCTION_ARGS);
00190 
00191 #endif   /* DATE_H */