temporal.h File Reference

Basic functions for temporal types of any subtype. More...

#include <postgres.h>
#include <catalog/pg_type.h>
#include <lib/stringinfo.h>
#include <utils/array.h>
#include <utils/rangetypes.h>
#include "timetypes.h"
#include "tbox.h"
#include "point/stbox.h"

Include dependency graph for temporal.h:

Go to the source code of this file.

Data Structures
struct	tempsubtype_struct
	Structure to represent the temporal subtype array. More...
struct	Temporal
	Structure to represent the common structure of temporal values of any temporal subtype. More...
struct	TInstant
	Structure to represent temporal values of instant subtype. More...
struct	TInstantSet
	Structure to represent temporal values of instant set subtype. More...
struct	TSequence
	Structure to represent temporal values of sequence subtype. More...
struct	TSequenceSet
	Structure to represent temporal values of sequence set subtype. More...
union	bboxunion
	Structure to represent all types of bounding boxes. More...
struct	double2
	Structure to represent values of the internal type for computing aggregates for temporal number types. More...
struct	double3
	Structure to represent values of the internal type for computing aggregates for 2D temporal point types. More...
struct	double4
	Structure to represent values of the internal type for computing aggregates for 3D temporal point types. More...
struct	CommonEntry
	Structure to represent information about an entry that can be placed to either group without affecting overlap over selected axis ("common entry"). More...
struct	SplitInterval
	Structure to represent a projection of bounding box to an axis. More...

Macros
#define	MOBDB_EPSILON   1.0E-05
	Floating point precision. More...
#define	DIST_EPSILON   1.0E-05
	Precision for distance operations. More...
#define	DISCONTINUOUS   true
	Symbolic constants for lifting. More...
#define	CONTINUOUS   false
#define	INVERT   true
	Symbolic constants for lifting. More...
#define	INVERT_NO   false
#define	REST_AT   true
	Symbolic constants for the restriction functions. More...
#define	REST_MINUS   false
#define	UPPER_INC   true
	Symbolic constants for the restriction functions with boxes. More...
#define	UPPER_EXC   false
#define	EVER   true
	Symbolic constants for the ever/always functions. More...
#define	ALWAYS   false
#define	GET_MIN   true
	Symbolic constants for the restriction and the aggregation functions. More...
#define	GET_MAX   false
#define	CROSSINGS   true
	Symbolic constants for the synchronization and the aggregation functions. More...
#define	CROSSINGS_NO   false
#define	BBOX_TEST   true
	Symbolic constants for the synchronization and the aggregation functions. More...
#define	BBOX_TEST_NO   false
#define	MERGE   true
	Symbolic constants for the make functions. More...
#define	MERGE_NO   false
#define	NORMALIZE   true
#define	NORMALIZE_NO   false
#define	LINEAR   true
#define	STEP   false
#define	WITH_Z   true
	Symbolic constants for spatial relationships. More...
#define	NO_Z   false
#define	RANGE_ROUNDOFF   false
#define	ANYTEMPSUBTYPE   0
	Enumeration for the concrete subtype of temporal types. More...
#define	INSTANT   1
#define	INSTANTSET   2
#define	SEQUENCE   3
#define	SEQUENCESET   4
#define	TYPMOD_GET_SUBTYPE(typmod)   ((int16) ((typmod == -1) ? (0) : (typmod & 0x0000000F)))
#define	TEMPSUBTYPE_STRUCT_ARRAY_LEN   (sizeof tempsubtype_struct_array/sizeof(struct tempsubtype_struct))
#define	TEMPSUBTYPE_MAX_LEN   13
#define	MOBDB_FLAGS_GET_BYVAL(flags)   ((bool) ((flags) & 0x01))
#define	MOBDB_FLAGS_GET_CONTINUOUS(flags)   ((bool) (((flags) & 0x02)>>1))
#define	MOBDB_FLAGS_GET_LINEAR(flags)   ((bool) (((flags) & 0x04)>>2))
#define	MOBDB_FLAGS_GET_X(flags)   ((bool) (((flags) & 0x08)>>3))
#define	MOBDB_FLAGS_GET_Z(flags)   ((bool) (((flags) & 0x10)>>4))
#define	MOBDB_FLAGS_GET_T(flags)   ((bool) (((flags) & 0x20)>>5))
#define	MOBDB_FLAGS_GET_GEODETIC(flags)   ((bool) (((flags) & 0x40)>>6))
#define	MOBDB_FLAGS_SET_BYVAL(flags, value)   ((flags) = (value) ? ((flags) | 0x01) : ((flags) & 0xFE))
#define	MOBDB_FLAGS_SET_CONTINUOUS(flags, value)   ((flags) = (value) ? ((flags) | 0x02) : ((flags) & 0xFD))
#define	MOBDB_FLAGS_SET_LINEAR(flags, value)   ((flags) = (value) ? ((flags) | 0x04) : ((flags) & 0xFB))
#define	MOBDB_FLAGS_SET_X(flags, value)   ((flags) = (value) ? ((flags) | 0x08) : ((flags) & 0xF7))
#define	MOBDB_FLAGS_SET_Z(flags, value)   ((flags) = (value) ? ((flags) | 0x10) : ((flags) & 0xEF))
#define	MOBDB_FLAGS_SET_T(flags, value)   ((flags) = (value) ? ((flags) | 0x20) : ((flags) & 0xDF))
#define	MOBDB_FLAGS_SET_GEODETIC(flags, value)   ((flags) = (value) ? ((flags) | 0x40) : ((flags) & 0xBF))
#define	JAN_3_2000   (2 * USECS_PER_DAY)
#define	DEFAULT_TIME_ORIGIN   (JAN_3_2000)
#define	DEFAULT_FLOATRANGE_ORIGIN   (0.0)
#define	DEFAULT_INTRANGE_ORIGIN   (0)
#define	LIMIT_RATIO   0.3
#define	FLOAT8_EQ(a, b)   (float8_cmp_internal(a, b) == 0)
#define	FLOAT8_LT(a, b)   (float8_cmp_internal(a, b) < 0)
#define	FLOAT8_LE(a, b)   (float8_cmp_internal(a, b) <= 0)
#define	FLOAT8_GT(a, b)   (float8_cmp_internal(a, b) > 0)
#define	FLOAT8_GE(a, b)   (float8_cmp_internal(a, b) >= 0)
#define	FLOAT8_MAX(a, b)   (FLOAT8_GT(a, b) ? (a) : (b))
#define	FLOAT8_MIN(a, b)   (FLOAT8_LT(a, b) ? (a) : (b))
#define	RTOverBeforeStrategyNumber   28 /* for &<# */
#define	RTBeforeStrategyNumber   29 /* for <<# */
#define	RTAfterStrategyNumber   30 /* for #>> */
#define	RTOverAfterStrategyNumber   31 /* for #&> */
#define	RTOverFrontStrategyNumber   32 /* for &</ */
#define	RTFrontStrategyNumber   33 /* for <</ */
#define	RTBackStrategyNumber   34 /* for />> */
#define	RTOverBackStrategyNumber   35 /* for /&> */
#define	DatumGetDouble2P(X)   ((double2 *) DatumGetPointer(X))
#define	Double2PGetDatum(X)   PointerGetDatum(X)
#define	DatumGetDouble3P(X)   ((double3 *) DatumGetPointer(X))
#define	Double3PGetDatum(X)   PointerGetDatum(X)
#define	DatumGetDouble4P(X)   ((double4 *) DatumGetPointer(X))
#define	Double4PGetDatum(X)   PointerGetDatum(X)
#define	DatumGetTemporal(X)   ((Temporal *) PG_DETOAST_DATUM(X))
#define	DatumGetTInstant(X)   ((TInstant *) PG_DETOAST_DATUM(X))
#define	DatumGetTInstantSet(X)   ((TInstantSet *) PG_DETOAST_DATUM(X))
#define	DatumGetTSequence(X)   ((TSequence *) PG_DETOAST_DATUM(X))
#define	DatumGetTSequenceSet(X)   ((TSequenceSet *) PG_DETOAST_DATUM(X))
#define	PG_GETARG_TEMPORAL(X)   ((Temporal *) PG_GETARG_VARLENA_P(X))
#define	PG_GETARG_ANYDATUM(X)
#define	DATUM_FREE(value, basetypid)
#define	DATUM_FREE_IF_COPY(value, basetypid, n)
#define	POSTGIS_FREE_IF_COPY_P(ptrsrc, ptrori)

Typedefs
typedef union bboxunion	bboxunion
	Structure to represent all types of bounding boxes. More...
typedef int(*	qsort_comparator) (const void *a, const void *b)
typedef Datum(*	varfunc) (Datum,...)
typedef Datum(*	datum_func2) (Datum, Datum)
typedef Datum(*	datum_func3) (Datum, Datum, Datum)

Enumerations
enum	TIntersection { SYNCHRONIZE_NOCROSS, SYNCHRONIZE_CROSS }
	Enumeration for the intersection/synchronization functions. More...

Functions
void	_PG_init (void)
	Initialize the extension. More...
const char *	tempsubtype_name (int16 subtype)
	Returns the string representation of the subtype of the temporal type corresponding to the enum value. More...
bool	tempsubtype_from_string (const char *str, int16 *subtype)
	Returns the enum value corresponding to the string representation of the concrete subtype of the temporal type. More...
void	ensure_valid_tempsubtype (int16 type)
	Ensures that the temporal type is valid. More...
void	ensure_valid_tempsubtype_all (int16 type)
	Ensures that the temporal type is valid. More...
void	ensure_seq_subtypes (int16 subtype)
	Ensures that the temporal type is a sequence (set) More...
void	ensure_linear_interpolation (int16 flags)
	Ensure that the temporal value has linear interpolation. More...
void	ensure_common_dimension (int16 flags1, int16 flags2)
	Ensure that the temporal values have at least one common dimension. More...
void	ensure_same_base_type (const Temporal *temp1, const Temporal *temp2)
	Ensures that the two temporal values have the same base type. More...
void	ensure_same_interpolation (const Temporal *temp1, const Temporal *temp2)
	Ensures that the two temporal values have the same interpolation. More...
void	ensure_increasing_timestamps (const TInstant *inst1, const TInstant *inst2, bool strict)
	Ensures that the timestamp of the first temporal instant is smaller (or equal if the merge parameter is true) than the one of the second temporal instant. More...
void	ensure_valid_tinstantarr (const TInstant **instants, int count, bool merge, int16 subtype)
	Ensures that all temporal instant values of the array have increasing timestamp (or may be equal if the merge parameter is true), and if they are temporal points, have the same srid and the same dimensionality. More...
void	ensure_valid_tsequencearr (const TSequence **sequences, int count)
	Ensures that all temporal instant values of the array have increasing timestamp, and if they are temporal points, have the same srid and the same dimensionality. More...
void	ensure_positive_datum (Datum size, Oid type)
	Ensures that the number is positive. More...
void	ensure_valid_duration (const Interval *duration)
	Ensures that the interval is a positive and absolute duration. More...
void	ensure_non_empty_array (ArrayType *array)
	Ensures that the array is not empty. More...
Temporal *	temporal_copy (const Temporal *temp)
	Returns a copy of the temporal value. More...
Temporal *	pg_getarg_temporal (const Temporal *temp)
bool	intersection_temporal_temporal (const Temporal *temp1, const Temporal *temp2, TIntersection mode, Temporal **inter1, Temporal **inter2)
	Temporally intersect the two temporal values. More...
Datum	mobilitydb_version (PG_FUNCTION_ARGS)
	Version of the MobilityDB extension. More...
Datum	mobilitydb_full_version (PG_FUNCTION_ARGS)
	Versions of the MobilityDB extension and its dependencies. More...
Datum	temporal_in (PG_FUNCTION_ARGS)
	Generic input function for temporal types. More...
Datum	temporal_out (PG_FUNCTION_ARGS)
	Generic output function for temporal types. More...
Datum	temporal_send (PG_FUNCTION_ARGS)
Datum	temporal_recv (PG_FUNCTION_ARGS)
	Generic receive function for temporal types. More...
Temporal *	temporal_read (StringInfo buf, Oid basetypid)
	Returns a new temporal value from its binary representation read from the buffer (dispatch function) More...
void	temporal_write (const Temporal *temp, StringInfo buf)
	Write the binary representation of the temporal value into the buffer (dispatch function) More...
Datum	tinstant_constructor (PG_FUNCTION_ARGS)
	Construct a temporal instant value from the arguments. More...
Datum	tinstantset_constructor (PG_FUNCTION_ARGS)
	Construct a temporal instant set value from the array of temporal instant values. More...
Datum	tlinearseq_constructor (PG_FUNCTION_ARGS)
	Construct a temporal sequence value with linear or stepwise interpolation from the array of temporal instant values. More...
Datum	tstepseq_constructor (PG_FUNCTION_ARGS)
	Construct a temporal sequence value with stepwise interpolation from the array of temporal instant values. More...
Datum	tsequenceset_constructor (PG_FUNCTION_ARGS)
	Construct a temporal sequence set value from the array of temporal sequence values. More...
Datum	temporal_append_tinstant (PG_FUNCTION_ARGS)
	Append an instant to the end of a temporal value. More...
Datum	temporal_merge (PG_FUNCTION_ARGS)
	Merge the two temporal values. More...
Datum	temporal_merge_array (PG_FUNCTION_ARGS)
	Merge the array of temporal values. More...
Temporal *	temporal_merge_internal (const Temporal *temp1, const Temporal *temp2)
Temporal *	temporal_from_base (const Temporal *temp, Datum value, Oid basetypid, bool linear)
	Transform a temporal value into a constant value with the same time frame (internal function) More...
Datum	tint_to_tfloat (PG_FUNCTION_ARGS)
	Cast the temporal integer value as a temporal float value. More...
Datum	temporal_to_period (PG_FUNCTION_ARGS)
	Returns the bounding period on which the temporal value is defined. More...
Temporal *	tint_to_tfloat_internal (Temporal *temp)
	Cast the temporal integer value as a temporal float value (dispatch function) More...
Datum	temporal_subtype (PG_FUNCTION_ARGS)
	Returns the string representation of the temporal type. More...
Datum	temporal_interpolation (PG_FUNCTION_ARGS)
	Returns the string representation of the temporal interpolation. More...
Datum	temporal_mem_size (PG_FUNCTION_ARGS)
	Returns the size in bytes of the temporal value. More...
Datum	temporal_get_values (PG_FUNCTION_ARGS)
	Returns the base values of the temporal value as an array. More...
Datum	temporal_get_time (PG_FUNCTION_ARGS)
	Returns the time on which the temporal value is defined as a period set. More...
Datum	tinstant_get_value (PG_FUNCTION_ARGS)
	Returns the base value of the temporal instant value. More...
Datum	tnumber_to_tbox (PG_FUNCTION_ARGS)
	Returns the bounding box of the temporal value. More...
Datum	tnumber_value_range (PG_FUNCTION_ARGS)
	Returns the value range of the temporal integer value. More...
Datum	temporal_start_value (PG_FUNCTION_ARGS)
	Returns the start base value of the temporal value. More...
Datum	temporal_end_value (PG_FUNCTION_ARGS)
	Returns the end base value of the temporal value. More...
Datum	temporal_min_value (PG_FUNCTION_ARGS)
	Returns the minimum base value of the temporal value. More...
Datum	temporal_max_value (PG_FUNCTION_ARGS)
	Returns the maximum base value of the temporal value. More...
Datum	temporal_num_instants (PG_FUNCTION_ARGS)
	Returns the number of distinct instants of the temporal value. More...
Datum	temporal_start_instant (PG_FUNCTION_ARGS)
	Returns the start instant of the temporal value. More...
Datum	temporal_end_instant (PG_FUNCTION_ARGS)
	Returns the end instant of the temporal value. More...
Datum	temporal_instant_n (PG_FUNCTION_ARGS)
	Returns the n-th instant of the temporal value. More...
Datum	temporal_instants (PG_FUNCTION_ARGS)
	Returns the distinct instants of the temporal value as an array. More...
Datum	temporal_num_timestamps (PG_FUNCTION_ARGS)
	Returns the number of distinct timestamps of the temporal value. More...
Datum	temporal_start_timestamp (PG_FUNCTION_ARGS)
	Returns the start timestamp of the temporal value. More...
Datum	temporal_end_timestamp (PG_FUNCTION_ARGS)
	Returns the end timestamp of the temporal value. More...
Datum	temporal_timestamp_n (PG_FUNCTION_ARGS)
	Returns the n-th distinct timestamp of the temporal value. More...
Datum	temporal_timestamps (PG_FUNCTION_ARGS)
	Returns the distinct timestamps of the temporal value as an array. More...
Datum	temporal_shift (PG_FUNCTION_ARGS)
	Shift the time span of the temporal value by the interval. More...
ArrayType *	temporal_timestamps_internal (const Temporal *temp)
	Returns the distinct timestamps of the temporal value as an array. More...
const TInstant **	temporal_instants_internal (const Temporal *temp, int *count)
	Returns the instants of the temporal value as a C array. More...
const TInstant *	tinstarr_inst_n (const Temporal *temp, int n)
	Returns the n-th instant of the temporal instant set or a temporal sequence value. More...
PeriodSet *	temporal_get_time_internal (const Temporal *temp)
	Returns the time on which the temporal value is defined as a period set (dispatch function) More...
Datum	tfloat_ranges (const Temporal *temp)
	Returns the base values of the temporal float value as an array of ranges (dispatch function) More...
const TInstant *	temporal_min_instant (const Temporal *temp)
	Returns a pointer to the instant with minimum base value of the temporal value. More...
Datum	temporal_min_value_internal (const Temporal *temp)
	Returns the minimum base value of the temporal value (dispatch function) More...
const TInstant *	temporal_end_instant_internal (const Temporal *temp)
	Returns the end instant of the temporal value (internal function). More...
TimestampTz	temporal_start_timestamp_internal (const Temporal *temp)
	Returns the start timestamp of the temporal value (dispatch function) More...
RangeType *	tnumber_value_range_internal (const Temporal *temp)
	Returns the value range of the temporal integer value (internal function) More...
Datum	temporal_ever_eq (PG_FUNCTION_ARGS)
	Returns true if the temporal value is ever equal to the base value. More...
Datum	temporal_ever_ne (PG_FUNCTION_ARGS)
	Returns true if the temporal value is ever different from the base value. More...
Datum	temporal_ever_lt (PG_FUNCTION_ARGS)
	Returns true if the temporal value is ever less than the base value. More...
Datum	temporal_ever_le (PG_FUNCTION_ARGS)
	Returns true if the temporal value is ever less than or equal to the base value. More...
Datum	temporal_ever_gt (PG_FUNCTION_ARGS)
	Returns true if the temporal value is ever greater than the base value. More...
Datum	temporal_ever_ge (PG_FUNCTION_ARGS)
	Returns true if the temporal value is ever greater than or equal to the base value. More...
Datum	temporal_always_eq (PG_FUNCTION_ARGS)
	Returns true if the temporal value is always equal to the base value. More...
Datum	temporal_always_ne (PG_FUNCTION_ARGS)
	Returns true if the temporal value is always different from the base value. More...
Datum	temporal_always_lt (PG_FUNCTION_ARGS)
	Returns true if the temporal value is always less than the base value. More...
Datum	temporal_always_le (PG_FUNCTION_ARGS)
	Returns true if the temporal value is always less than or equal to the base value. More...
Datum	temporal_always_gt (PG_FUNCTION_ARGS)
	Returns true if the temporal value is always greater than the base value. More...
Datum	temporal_always_ge (PG_FUNCTION_ARGS)
	Returns true if the temporal value is always greater than or equal to the base value. More...
bool	temporal_bbox_ev_al_eq (const Temporal *temp, Datum value, bool ever)
	Returns true if the bounding box of the temporal value is ever equal to the base value. More...
bool	temporal_bbox_ev_al_lt_le (const Temporal *temp, Datum value, bool ever)
	Returns true if the bounding box of the temporal value is ever/always less than or equal to the base value. More...
bool	temporal_ever_eq_internal (const Temporal *temp, Datum value)
	Returns true if the temporal value is ever equal to the base value (internal function) More...
Datum	temporal_at_value (PG_FUNCTION_ARGS)
	Restricts the temporal value to the base value. More...
Datum	temporal_minus_value (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the base value. More...
Datum	temporal_at_values (PG_FUNCTION_ARGS)
	Restricts the temporal value to the array of base values. More...
Datum	tnumber_at_range (PG_FUNCTION_ARGS)
	Restricts the temporal value to the range of base values. More...
Datum	tnumber_minus_range (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the range of base values. More...
Datum	tnumber_at_ranges (PG_FUNCTION_ARGS)
	Restricts the temporal value to the array of ranges of base values. More...
Datum	tnumber_minus_ranges (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the array of ranges of base values. More...
Datum	temporal_at_min (PG_FUNCTION_ARGS)
	Restricts the temporal value to the minimum base value. More...
Datum	temporal_minus_min (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the minimum base value. More...
Datum	temporal_at_max (PG_FUNCTION_ARGS)
	Restricts the temporal value to the maximum base value. More...
Datum	temporal_minus_max (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the maximum base value. More...
Datum	temporal_at_timestamp (PG_FUNCTION_ARGS)
	Restricts the temporal value to the timestamp. More...
Datum	temporal_minus_timestamp (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the timestamp. More...
Datum	temporal_value_at_timestamp (PG_FUNCTION_ARGS)
	Returns the base value of the temporal value at the timestamp. More...
Datum	temporal_at_timestampset (PG_FUNCTION_ARGS)
	Restricts the temporal value to the timestamp set. More...
Datum	temporal_minus_timestampset (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the timestamp set. More...
Datum	temporal_at_period (PG_FUNCTION_ARGS)
	Restricts the temporal value to the period. More...
Datum	temporal_minus_period (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the period. More...
Datum	temporal_at_periodset (PG_FUNCTION_ARGS)
	Restricts the temporal value to the period set. More...
Datum	temporal_minus_periodset (PG_FUNCTION_ARGS)
	Restricts the temporal value to the complement of the period set. More...
Datum	temporal_intersects_timestamp (PG_FUNCTION_ARGS)
	Returns true if the temporal value intersects the timestamp. More...
Datum	temporal_intersects_timestampset (PG_FUNCTION_ARGS)
	Returns true if the temporal value intersects the timestamp set. More...
Datum	temporal_intersects_period (PG_FUNCTION_ARGS)
	Returns true if the temporal value intersects the period. More...
Datum	temporal_intersects_periodset (PG_FUNCTION_ARGS)
	Returns true if the temporal value intersects the period set. More...
bool	temporal_value_at_timestamp_inc (const Temporal *temp, TimestampTz t, Datum *value)
	Returns the base value of the temporal value at the timestamp when the timestamp may be at an exclusive bound. More...
bool	temporal_bbox_restrict_value (const Temporal *temp, Datum value)
	Returns true if the bounding box of the temporal value contains the base value. More...
Datum *	temporal_bbox_restrict_values (const Temporal *temp, const Datum *values, int count, int *newcount)
	Returns the array of base values that are contained in the bounding box of the temporal value. More...
RangeType **	tnumber_bbox_restrict_ranges (const Temporal *temp, RangeType **ranges, int count, int *newcount)
	Returns the array of ranges of base values that overlap with the bounding box of the temporal value. More...
Temporal *	tnumber_restrict_range_internal (const Temporal *temp, RangeType *range, bool atfunc)
	Restricts the temporal value to the (complement of the) range of base values (dispatch function) More...
Temporal *	temporal_restrict_timestamp_internal (const Temporal *temp, TimestampTz t, bool atfunc)
	Restricts the temporal value to the timestamp (dispatch function) More...
Temporal *	temporal_at_period_internal (const Temporal *temp, const Period *ps)
Temporal *	temporal_minus_period_internal (const Temporal *temp, const Period *ps)
Temporal *	temporal_restrict_periodset_internal (const Temporal *temp, const PeriodSet *ps, bool atfunc)
	Restricts the temporal value to the (complement of the) period set (dispatch function) More...
void	temporal_period (Period *p, const Temporal *temp)
	Returns the bounding period on which the temporal value is defined (dispatch function) More...
char *	temporal_to_string (const Temporal *temp, char *(*value_out)(Oid, Datum))
	Returns the string representation of the temporal value (dispatch function) More...
void *	temporal_bbox_ptr (const Temporal *temp)
	Returns a pointer to the precomputed bounding box of the temporal value. More...
void	temporal_bbox (void *box, const Temporal *temp)
	Set the first argument to the bounding box of the temporal value. More...
Datum	temporal_lt (PG_FUNCTION_ARGS)
	Returns true if the first temporal value is less than the second one. More...
Datum	temporal_le (PG_FUNCTION_ARGS)
	Returns true if the first temporal value is less than or equal to the second one. More...
Datum	temporal_eq (PG_FUNCTION_ARGS)
	Returns true if the two temporal values are equal. More...
Datum	temporal_ge (PG_FUNCTION_ARGS)
	Returns true if the first temporal value is greater than or equal to the second one. More...
Datum	temporal_gt (PG_FUNCTION_ARGS)
	Returns true if the first temporal value is greater than the second one. More...
Datum	temporal_cmp (PG_FUNCTION_ARGS)
	Returns -1, 0, or 1 depending on whether the first temporal value is less than, equal, or greater than the second temporal value. More...
Datum	temporal_hash (PG_FUNCTION_ARGS)
	Returns the hash value of the temporal value. More...
uint32	temporal_hash_internal (const Temporal *temp)
	Returns the hash value of the temporal value (dispatch function) More...

Detailed Description

Basic functions for temporal types of any subtype.