lifting.h

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/*****************************************************************************
 *
 * This MobilityDB code is provided under The PostgreSQL License.
 * Copyright (c) 2016-2025, Université libre de Bruxelles and MobilityDB
 * contributors
 *
 * MobilityDB includes portions of PostGIS version 3 source code released
 * under the GNU General Public License (GPLv2 or later).
 * Copyright (c) 2001-2025, PostGIS contributors
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without a written
 * agreement is hereby granted, provided that the above copyright notice and
 * this paragraph and the following two paragraphs appear in all copies.
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 * IN NO EVENT SHALL UNIVERSITE LIBRE DE BRUXELLES BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
 * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
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 * UNIVERSITE LIBRE DE BRUXELLES SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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 *****************************************************************************/
 
#ifndef __LIFTING_H__
#define __LIFTING_H__
 
/* MEOS */
#include <meos.h>
#include "temporal/temporal.h"
#include "temporal/meos_catalog.h"
 
#define MAX_PARAMS 1
#define MAX_ARGS   2
 
typedef struct
{
  varfunc func;               
  int numparam;               
  Datum param[MAX_PARAMS];    
  meosType argtype[MAX_ARGS]; 
  meosType restype;           
  bool reslinear;             
  bool invert;                
  bool discont;               
  bool ever;                  
  tpfunc_base tpfn_base;      
  tpfunc_temp tpfn_temp;      
} LiftedFunctionInfo;
 
/*****************************************************************************/
 
extern TInstant *tfunc_tinstant(const TInstant *inst,
  LiftedFunctionInfo *lfinfo);
extern TSequence *tfunc_tsequence(const TSequence *seq,
  LiftedFunctionInfo *lfinfo);
extern TSequenceSet *tfunc_tsequenceset(const TSequenceSet *ss,
  LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_temporal(const Temporal *temp,
  LiftedFunctionInfo *lfinfo);
 
extern TInstant *tfunc_tinstant_base(const TInstant *inst, Datum value,
  LiftedFunctionInfo *lfinfo);
extern TSequence *tfunc_tsequence_base(const TSequence *seq, Datum value,
  LiftedFunctionInfo *lfinfo);
extern TSequenceSet *tfunc_tsequenceset_base(const TSequenceSet *ss, Datum value,
  LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_temporal_base(const Temporal *temp, Datum value,
  LiftedFunctionInfo *lfinfo);
 
extern TInstant *tfunc_tinstant_tinstant(const TInstant *inst1,
  const TInstant *inst2, LiftedFunctionInfo *lfinfo);
extern TSequence *tfunc_tdiscseq_tdiscseq(const TSequence *seq1,
  const TSequence *seq2, LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_tcontseq_tcontseq(const TSequence *seq1,
  const TSequence *seq2, LiftedFunctionInfo *lfinfo);
extern TSequenceSet *tfunc_tsequenceset_tsequenceset(const TSequenceSet *ss1,
  const TSequenceSet *ss2, LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_temporal_temporal(const Temporal *temp1,
  const Temporal *temp2, LiftedFunctionInfo *lfinfo);
 
/*****************************************************************************/
 
extern int eafunc_temporal_base(const Temporal *temp, Datum value,
  LiftedFunctionInfo *lfinfo);
extern int eafunc_temporal_temporal(const Temporal *temp1,
  const Temporal *temp2, LiftedFunctionInfo *lfinfo);
 
/*****************************************************************************/
 
#endif