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/*------------------------------------------------------------------------- * * stratnum.h * POSTGRES strategy number definitions. * * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/access/stratnum.h * *------------------------------------------------------------------------- */ #ifndef STRATNUM_H #define STRATNUM_H /* * 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 for B-tree indexes. */ #define BTLessStrategyNumber 1 #define BTLessEqualStrategyNumber 2 #define BTEqualStrategyNumber 3 #define BTGreaterEqualStrategyNumber 4 #define BTGreaterStrategyNumber 5 #define BTMaxStrategyNumber 5 /* * 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 RTMaxStrategyNumber 27 #endif /* STRATNUM_H */