1/*-------------------------------------------------------------------------
2 *
3 * extension.h
4 * Extension management commands (create/drop extension).
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/extension.h
11 *
12 *-------------------------------------------------------------------------
13 */
14#ifndef EXTENSION_H
15#define EXTENSION_H
16
17#include "catalog/objectaddress.h"
18#include "nodes/parsenodes.h"
19
20
21/*
22 * creating_extension is only true while running a CREATE EXTENSION or ALTER
23 * EXTENSION UPDATE command. It instructs recordDependencyOnCurrentExtension()
24 * to register a dependency on the current pg_extension object for each SQL
25 * object created by an extension script. It also instructs performDeletion()
26 * to remove such dependencies without following them, so that extension
27 * scripts can drop member objects without having to explicitly dissociate
28 * them from the extension first.
29 */
30extern PGDLLIMPORT bool creating_extension;
31extern PGDLLIMPORT Oid CurrentExtensionObject;
32
33
34extern ObjectAddress CreateExtension(ParseState *pstate, CreateExtensionStmt *stmt);
35
36extern void RemoveExtensionById(Oid extId);
37
38extern ObjectAddress InsertExtensionTuple(const char *extName, Oid extOwner,
39 Oid schemaOid, bool relocatable, const char *extVersion,
40 Datum extConfig, Datum extCondition,
41 List *requiredExtensions);
42
43extern ObjectAddress ExecAlterExtensionStmt(ParseState *pstate, AlterExtensionStmt *stmt);
44
45extern ObjectAddress ExecAlterExtensionContentsStmt(AlterExtensionContentsStmt *stmt,
46 ObjectAddress *objAddress);
47
48extern Oid get_extension_oid(const char *extname, bool missing_ok);
49extern char *get_extension_name(Oid ext_oid);
50
51extern ObjectAddress AlterExtensionNamespace(const char *extensionName, const char *newschema,
52 Oid *oldschema);
53
54#endif /* EXTENSION_H */
55