tnumber_gist.h

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#ifndef __PG_TNUMBER_GIST_H__
#define __PG_TNUMBER_GIST_H__
 
/* PostgreSQL */
#include <postgres.h>
#include <fmgr.h>
#include <access/gist.h>
#include <access/stratnum.h>
/* MEOS */
#include <meos.h>
#include "temporal/temporal.h"
 
/*****************************************************************************/
 
typedef struct
{
  int  entriesCount;  
  bboxunion boundingBox;  
  bool first;        
  double leftUpper;  
  double rightLower; 
  float4 ratio;
  float4 overlap;
  int  dim;          
  double range;      
} ConsiderSplitContext;
 
/*****************************************************************************/
 
/* The following functions are also called by tpoint_gist.c */
extern void bbox_gist_fallback_split(GistEntryVector *entryvec,
  GIST_SPLITVEC *v, meosType bboxtype, void (*bbox_adjust)(void *, void *));
extern int interval_cmp_lower(const void *i1, const void *i2);
extern int interval_cmp_upper(const void *i1, const void *i2);
extern float non_negative(float val);
extern void bbox_gist_consider_split(ConsiderSplitContext *context, int dimNum,
  meosType bboxtype, double rightLower, int minLeftCount, double leftUpper,
  int maxLeftCount);
extern Datum bbox_gist_picksplit(FunctionCallInfo fcinfo, meosType bboxtype,
  void (*bbox_adjust)(void *, void *), double (*bbox_penalty)(void *, void *));
 
/* The following functions are also called by tnumber_spgist.c */
extern bool tbox_index_leaf_consistent(const TBox *key, const TBox *query,
  StrategyNumber strategy);
 
/*****************************************************************************/
 
#endif /* __PG_TNUMBER_GIST_H__ */