tnumber_mathfuncs.h

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#ifndef __TEMPORAL_MATHFUNCS_H__
#define __TEMPORAL_MATHFUNCS_H__
 
/* PostgreSQL */
#include <postgres.h>
/* MEOS */
#include <meos.h>
#include "temporal/temporal.h"
#include "temporal/meos_catalog.h"
 
/*****************************************************************************/
 
typedef enum
{
  ADD,
  SUB,
  MULT,
  DIV,
  DIST,
} TArithmetic;
 
/*****************************************************************************/
 
extern int tfloat_arithop_turnpt(Datum start1, Datum end1, Datum start2,
  Datum end2, Datum param UNUSED, TimestampTz lower, TimestampTz upper,
  TimestampTz *t1, TimestampTz *t2);
 
extern Temporal *arithop_tnumber_number(const Temporal *temp, Datum value,
  TArithmetic oper, Datum (*func)(Datum, Datum, meosType), bool invert);
extern Temporal *arithop_tnumber_tnumber(const Temporal *temp1,
  const Temporal *temp2, TArithmetic oper,
  Datum (*func)(Datum, Datum, meosType), tpfunc_temp tpfunc);
 
extern TSequence *tfloatseq_derivative(const TSequence *seq);
extern TSequenceSet *tfloatseqset_derivative(const TSequenceSet *ss);
 
/*****************************************************************************/
 
#endif