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1 /*-------------------------------------------------------------------------
2  *
3  * tablespace.h
4  *              Tablespace management commands (create/drop tablespace).
5  *
6  *
7  * Portions Copyright (c) 1996-2015, 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 /* XLOG stuff */
23 #define XLOG_TBLSPC_CREATE              0x00
24 #define XLOG_TBLSPC_DROP                0x10
25
26 typedef struct xl_tblspc_create_rec
27 {
28         Oid                     ts_id;
29         char            ts_path[FLEXIBLE_ARRAY_MEMBER]; /* null-terminated string */
30 } xl_tblspc_create_rec;
31
32 typedef struct xl_tblspc_drop_rec
33 {
34         Oid                     ts_id;
35 } xl_tblspc_drop_rec;
36
37 typedef struct TableSpaceOpts
38 {
39         int32           vl_len_;                /* varlena header (do not touch directly!) */
40         float8          random_page_cost;
41         float8          seq_page_cost;
42         int                     effective_io_concurrency;
43 } TableSpaceOpts;
44
45 extern Oid      CreateTableSpace(CreateTableSpaceStmt *stmt);
46 extern void DropTableSpace(DropTableSpaceStmt *stmt);
47 extern ObjectAddress RenameTableSpace(const char *oldname, const char *newname);
48 extern Oid      AlterTableSpaceOptions(AlterTableSpaceOptionsStmt *stmt);
49
50 extern void TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool isRedo);
51
52 extern Oid      GetDefaultTablespace(char relpersistence);
53
54 extern void PrepareTempTablespaces(void);
55
56 extern Oid      get_tablespace_oid(const char *tablespacename, bool missing_ok);
57 extern char *get_tablespace_name(Oid spc_oid);
58
59 extern bool directory_is_empty(const char *path);
60 extern void remove_tablespace_symlink(const char *linkloc);
61
62 extern void tblspc_redo(XLogReaderState *rptr);
63 extern void tblspc_desc(StringInfo buf, XLogReaderState *rptr);
64 extern const char *tblspc_identify(uint8 info);
65
66 #endif   /* TABLESPACE_H */