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/*------------------------------------------------------------------------- * * visibilitymap.h * visibility map interface * * * Portions Copyright (c) 2007-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/access/visibilitymap.h * *------------------------------------------------------------------------- */ #ifndef VISIBILITYMAP_H #define VISIBILITYMAP_H #include "access/xlogdefs.h" #include "storage/block.h" #include "storage/buf.h" #include "utils/relcache.h" extern void visibilitymap_clear(Relation rel, BlockNumber heapBlk, Buffer vmbuf); extern void visibilitymap_pin(Relation rel, BlockNumber heapBlk, Buffer *vmbuf); extern bool visibilitymap_pin_ok(BlockNumber heapBlk, Buffer vmbuf); extern void visibilitymap_set(Relation rel, BlockNumber heapBlk, XLogRecPtr recptr, Buffer vmbuf, TransactionId cutoff_xid); extern bool visibilitymap_test(Relation rel, BlockNumber heapBlk, Buffer *vmbuf); extern BlockNumber visibilitymap_count(Relation rel); extern void visibilitymap_truncate(Relation rel, BlockNumber nheapblocks); #endif /* VISIBILITYMAP_H */