tspatial_selfuncs.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.
 *
 * 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 __TSPATIAL_SELFUNCS_H__
#define __TSPATIAL_SELFUNCS_H__
 
/* PostgreSQL */
#include <postgres.h>
#include <catalog/pg_statistic.h>
#include <utils/selfuncs.h>
/* MEOS */
#include "temporal/meos_catalog.h"
/* MobilityDB */
#include "pg_geo/tspatial_analyze.h"
 
#define X_DIM  0
#define Y_DIM  1
#define Z_DIM  2
#define T_DIM  3
#define ND_DIMS 4
 
/*****************************************************************************
 * Definitions copied from PostGIS file gserialized_estimate.c
 *****************************************************************************/
 
/*
* The SD factor restricts the side of the statistics histogram
* based on the standard deviation of the extent of the data.
* SDFACTOR is the number of standard deviations from the mean
* the histogram will extend.
*/
#define SDFACTOR 3.25
 
#define MIN_DIMENSION_WIDTH 0.000000001
 
#define STATISTIC_KIND_ND 102
#define STATISTIC_KIND_2D 103
#define STATISTIC_SLOT_ND 0
#define STATISTIC_SLOT_2D 1
 
#define DEFAULT_ND_SEL 0.0001
#define DEFAULT_ND_JOINSEL 0.001
 
#define FALLBACK_ND_SEL 0.2
#define FALLBACK_ND_JOINSEL 0.3
 
/*****************************************************************************/
 
extern ND_STATS *pg_nd_stats_from_tuple(HeapTuple stats_tuple, int mode);
extern ND_STATS *pg_get_nd_stats(const Oid tableid, AttrNumber att_num,
  int mode, bool only_parent);
 
extern float8 geo_sel(VariableStatData *vardata, const STBox *box,
  meosOper oper);
extern float8 geo_joinsel(const ND_STATS *s1, const ND_STATS *s2);
 
/*****************************************************************************/
 
#endif