tablespace.h

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/*-------------------------------------------------------------------------
 *
 * tablespace.h
 *      Tablespace management commands (create/drop tablespace).
 *
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/commands/tablespace.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef TABLESPACE_H
#define TABLESPACE_H
 
#include "access/xlogreader.h"
#include "catalog/objectaddress.h"
#include "lib/stringinfo.h"
#include "nodes/parsenodes.h"
 
extern PGDLLIMPORT char *default_tablespace;
extern PGDLLIMPORT char *temp_tablespaces;
extern PGDLLIMPORT bool allow_in_place_tablespaces;
 
/* XLOG stuff */
#define XLOG_TBLSPC_CREATE      0x00
#define XLOG_TBLSPC_DROP        0x10
 
typedef struct xl_tblspc_create_rec
{
    Oid         ts_id;
    char        ts_path[FLEXIBLE_ARRAY_MEMBER]; /* null-terminated string */
} xl_tblspc_create_rec;
 
typedef struct xl_tblspc_drop_rec
{
    Oid         ts_id;
} xl_tblspc_drop_rec;
 
typedef struct TableSpaceOpts
{
    int32       vl_len_;        /* varlena header (do not touch directly!) */
    float8      random_page_cost;
    float8      seq_page_cost;
    int         effective_io_concurrency;
    int         maintenance_io_concurrency;
} TableSpaceOpts;
 
extern Oid  CreateTableSpace(CreateTableSpaceStmt *stmt);
extern void DropTableSpace(DropTableSpaceStmt *stmt);
extern ObjectAddress RenameTableSpace(const char *oldname, const char *newname);
extern Oid  AlterTableSpaceOptions(AlterTableSpaceOptionsStmt *stmt);
 
extern void TablespaceCreateDbspace(Oid spcOid, Oid dbOid, bool isRedo);
 
extern Oid  GetDefaultTablespace(char relpersistence, bool partitioned);
 
extern void PrepareTempTablespaces(void);
 
extern Oid  get_tablespace_oid(const char *tablespacename, bool missing_ok);
extern char *get_tablespace_name(Oid spc_oid);
 
extern bool directory_is_empty(const char *path);
extern void remove_tablespace_symlink(const char *linkloc);
 
extern void tblspc_redo(XLogReaderState *record);
extern void tblspc_desc(StringInfo buf, XLogReaderState *record);
extern const char *tblspc_identify(uint8 info);
 
#endif                          /* TABLESPACE_H */