stratnum.h

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#ifndef __STRATNUM_H__
#define __STRATNUM_H__
 
/* PostgreSQL */
#include <postgres.h>
 
/*****************************************************************************/
 
#if ! MEOS
/*
 * Strategy numbers identify the semantics that particular operators have
 * with respect to particular operator classes.  In some cases a strategy
 * subtype (an OID) is used as further information.
 */
typedef uint16 StrategyNumber;
 
#define InvalidStrategy ((StrategyNumber) 0)
 
/*
 * Strategy numbers common to (some) GiST, SP-GiST and BRIN opclasses.
 *
 * The first few of these come from the R-Tree indexing method (hence the
 * names); the others have been added over time as they have been needed.
 */
#define RTLeftStrategyNumber            1   /* for << */
#define RTOverLeftStrategyNumber        2   /* for &< */
#define RTOverlapStrategyNumber         3   /* for && */
#define RTOverRightStrategyNumber       4   /* for &> */
#define RTRightStrategyNumber           5   /* for >> */
#define RTSameStrategyNumber            6   /* for ~= */
#define RTContainsStrategyNumber        7   /* for @> */
#define RTContainedByStrategyNumber     8   /* for <@ */
#define RTOverBelowStrategyNumber       9   /* for &<| */
#define RTBelowStrategyNumber           10  /* for <<| */
#define RTAboveStrategyNumber           11  /* for |>> */
#define RTOverAboveStrategyNumber       12  /* for |&> */
#define RTOldContainsStrategyNumber     13  /* for old spelling of @> */
#define RTOldContainedByStrategyNumber  14  /* for old spelling of <@ */
#define RTKNNSearchStrategyNumber       15  /* for <-> (distance) */
#define RTContainsElemStrategyNumber    16  /* for range types @> elem */
#define RTAdjacentStrategyNumber        17  /* for -|- */
#define RTEqualStrategyNumber           18  /* for = */
#define RTNotEqualStrategyNumber        19  /* for != */
#define RTLessStrategyNumber            20  /* for < */
#define RTLessEqualStrategyNumber       21  /* for <= */
#define RTGreaterStrategyNumber         22  /* for > */
#define RTGreaterEqualStrategyNumber    23  /* for >= */
#define RTSubStrategyNumber             24  /* for inet >> */
#define RTSubEqualStrategyNumber        25  /* for inet <<= */
#define RTSuperStrategyNumber           26  /* for inet << */
#define RTSuperEqualStrategyNumber      27  /* for inet >>= */
#define RTPrefixStrategyNumber          28  /* for text ^@ */
#define RTOldBelowStrategyNumber        29  /* for old spelling of <<| */
#define RTOldAboveStrategyNumber        30  /* for old spelling of |>> */
 
#endif /* ! MEOS */
 
/* Additional operator strategy numbers used for temporal types */
 
#define RTOverBeforeStrategyNumber    28    /* for &<# */
#define RTBeforeStrategyNumber        29    /* for <<# */
#define RTAfterStrategyNumber         30    /* for #>> */
#define RTOverAfterStrategyNumber     31    /* for #&> */
#define RTOverFrontStrategyNumber     32    /* for &</ */
#define RTFrontStrategyNumber         33    /* for <</ */
#define RTBackStrategyNumber          34    /* for />> */
#define RTOverBackStrategyNumber      35    /* for /&> */
 
/*****************************************************************************/
 
#endif /* __STRATNUM_H__ */