greenplumn storage 源码
greenplumn storage 代码
文件路径：/src/include/catalog/storage.h
/*-------------------------------------------------------------------------
*
* storage.h
* prototypes for functions in backend/catalog/storage.c
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/catalog/storage.h
*
*-------------------------------------------------------------------------
*/
#ifndef STORAGE_H
#define STORAGE_H
#include "storage/block.h"
#include "storage/relfilenode.h"
#include "storage/smgr.h"
#include "utils/relcache.h"
extern SMgrRelation RelationCreateStorage(RelFileNode rnode,
char relpersistence,
SMgrImpl smgr_which);
extern void RelationDropStorage(Relation rel);
extern void RelationPreserveStorage(RelFileNode rnode, bool atCommit);
extern void RelationTruncate(Relation rel, BlockNumber nblocks);
extern void RelationCopyStorage(SMgrRelation src, SMgrRelation dst,
ForkNumber forkNum, char relpersistence);
/*
* These functions used to be in storage/smgr/smgr.c, which explains the
* naming
*/
extern void smgrDoPendingDeletes(bool isCommit);
extern int smgrGetPendingDeletes(bool forCommit, RelFileNodePendingDelete **ptr);
extern void AtSubCommit_smgr(void);
extern void AtSubAbort_smgr(void);
extern void PostPrepare_smgr(void);
#endif /* STORAGE_H */
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