lifting.h

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/*****************************************************************************
 *
 * This MobilityDB code is provided under The PostgreSQL License.
 *
 * Copyright (c) 2016-2021, 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) 2001-2021, 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.
 *
 * 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,
 * EVEN IF UNIVERSITE LIBRE DE BRUXELLES HAS BEEN ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
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 * UNIVERSITE LIBRE DE BRUXELLES SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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 *****************************************************************************/

#ifndef __LIFTING_H__
#define __LIFTING_H__

#include <postgres.h>
#include <catalog/pg_type.h>
#include "temporal.h"

#define MAX_PARAMS 3

typedef struct
{
  Datum (*func)(Datum, ...); 
  int numparam;              
  Datum param[MAX_PARAMS];   
  bool argoids;              
  Oid argtypid[2];           
  Oid restypid;              
  bool reslinear;            
  bool invert;               
  bool discont;              
  bool (*tpfunc_base)(const TInstant *, const TInstant *, Datum, Oid, 
    Datum *, TimestampTz *); 
  bool (*tpfunc)(const TInstant *, const TInstant *, bool, const TInstant *,
     const TInstant *, bool, Datum *,
     TimestampTz *);         
} LiftedFunctionInfo;

/*****************************************************************************/

extern TInstant *tfunc_tinstant(const TInstant *inst,
  LiftedFunctionInfo *lfinfo);
extern TInstantSet *tfunc_tinstantset(const TInstantSet *ti,
  LiftedFunctionInfo *lfinfo);
extern TSequence *tfunc_tsequence(const TSequence *seq,
  LiftedFunctionInfo *lfinfo);
extern TSequenceSet *tfunc_tsequenceset(const TSequenceSet *ts,
  LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_temporal(const Temporal *temp,
  LiftedFunctionInfo *lfinfo);

extern TInstant *tfunc_tinstant_base(const TInstant *inst, Datum value,
  LiftedFunctionInfo *lfinfo);
extern TInstantSet *tfunc_tinstantset_base(const TInstantSet *ti, Datum value,
  LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_tsequence_base(const TSequence *seq, Datum value,
  LiftedFunctionInfo *lfinfo);
extern TSequenceSet *tfunc_tsequenceset_base(const TSequenceSet *ts, Datum value,
  LiftedFunctionInfo *lfinfo);
extern Temporal *tfunc_temporal_base(const Temporal *temp, Datum value,
  LiftedFunctionInfo *lfinfo);

extern TInstant *sync_tfunc_tinstant_tinstant(const TInstant *inst1,
  const TInstant *inst2, LiftedFunctionInfo *lfinfo);
extern TInstantSet *sync_tfunc_tinstantset_tinstantset(const TInstantSet *ti1,
  const TInstantSet *ti2, LiftedFunctionInfo *lfinfo);
extern Temporal *sync_tfunc_temporal_temporal(const Temporal *temp1,
  const Temporal *temp2, LiftedFunctionInfo *lfinfo);

/*****************************************************************************/

#endif