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/* * brin_revmap.h * Prototypes for BRIN reverse range maps * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION * src/include/access/brin_revmap.h */ #ifndef BRIN_REVMAP_H #define BRIN_REVMAP_H #include "access/brin_tuple.h" #include "storage/block.h" #include "storage/buf.h" #include "storage/itemptr.h" #include "storage/off.h" #include "utils/relcache.h" #include "utils/snapshot.h" /* struct definition lives in brin_revmap.c */ typedef struct BrinRevmap BrinRevmap; extern BrinRevmap *brinRevmapInitialize(Relation idxrel, BlockNumber *pagesPerRange, Snapshot snapshot); extern void brinRevmapTerminate(BrinRevmap *revmap); extern void brinRevmapExtend(BrinRevmap *revmap, BlockNumber heapBlk); extern Buffer brinLockRevmapPageForUpdate(BrinRevmap *revmap, BlockNumber heapBlk); extern void brinSetHeapBlockItemptr(Buffer rmbuf, BlockNumber pagesPerRange, BlockNumber heapBlk, ItemPointerData tid); extern BrinTuple *brinGetTupleForHeapBlock(BrinRevmap *revmap, BlockNumber heapBlk, Buffer *buf, OffsetNumber *off, Size *size, int mode, Snapshot snapshot); #endif /* BRIN_REVMAP_H */