src/include/commands/tablespace.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * tablespace.h
   4  *              Tablespace management commands (create/drop tablespace).
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * src/include/commands/tablespace.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef TABLESPACE_H
  15 #define TABLESPACE_H
  16
  17 #include "access/xlogreader.h"
  18 #include "catalog/objectaddress.h"
  19 #include "lib/stringinfo.h"
  20 #include "nodes/parsenodes.h"
  21
  22 extern bool allow_in_place_tablespaces;
  23
  24 /* XLOG stuff */
  25 #define XLOG_TBLSPC_CREATE              0x00
  26 #define XLOG_TBLSPC_DROP                0x10
  27
  28 typedef struct xl_tblspc_create_rec
  29 {
  30         Oid                     ts_id;
  31         char            ts_path[FLEXIBLE_ARRAY_MEMBER]; /* null-terminated string */
  32 } xl_tblspc_create_rec;
  33
  34 typedef struct xl_tblspc_drop_rec
  35 {
  36         Oid                     ts_id;
  37 } xl_tblspc_drop_rec;
  38
  39 typedef struct TableSpaceOpts
  40 {
  41         int32           vl_len_;                /* varlena header (do not touch directly!) */
  42         float8          random_page_cost;
  43         float8          seq_page_cost;
  44         int                     effective_io_concurrency;
  45 } TableSpaceOpts;
  46
  47 extern Oid      CreateTableSpace(CreateTableSpaceStmt *stmt);
  48 extern void DropTableSpace(DropTableSpaceStmt *stmt);
  49 extern ObjectAddress RenameTableSpace(const char *oldname, const char *newname);
  50 extern Oid      AlterTableSpaceOptions(AlterTableSpaceOptionsStmt *stmt);
  51
  52 extern void TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool isRedo);
  53
  54 extern Oid      GetDefaultTablespace(char relpersistence, bool partitioned);
  55
  56 extern void PrepareTempTablespaces(void);
  57
  58 extern Oid      get_tablespace_oid(const char *tablespacename, bool missing_ok);
  59 extern char *get_tablespace_name(Oid spc_oid);
  60
  61 extern bool directory_is_empty(const char *path);
  62 extern void remove_tablespace_symlink(const char *linkloc);
  63
  64 extern void tblspc_redo(XLogReaderState *rptr);
  65 extern void tblspc_desc(StringInfo buf, XLogReaderState *rptr);
  66 extern const char *tblspc_identify(uint8 info);
  67
  68 #endif                                                  /* TABLESPACE_H */