src/include/commands/extension.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * extension.h
   4  *              Extension management commands (create/drop extension).
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2022, 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 "parser/parse_node.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  */
  30 extern PGDLLIMPORT bool creating_extension;
  31 extern PGDLLIMPORT Oid CurrentExtensionObject;
  32
  33
  34 extern ObjectAddress CreateExtension(ParseState *pstate, CreateExtensionStmt *stmt);
  35
  36 extern void RemoveExtensionById(Oid extId);
  37
  38 extern ObjectAddress InsertExtensionTuple(const char *extName, Oid extOwner,
  39                                                                                   Oid schemaOid, bool relocatable, const char *extVersion,
  40                                                                                   Datum extConfig, Datum extCondition,
  41                                                                                   List *requiredExtensions);
  42
  43 extern ObjectAddress ExecAlterExtensionStmt(ParseState *pstate, AlterExtensionStmt *stmt);
  44
  45 extern ObjectAddress ExecAlterExtensionContentsStmt(AlterExtensionContentsStmt *stmt,
  46                                                                                                         ObjectAddress *objAddr);
  47
  48 extern Oid      get_extension_oid(const char *extname, bool missing_ok);
  49 extern char *get_extension_name(Oid ext_oid);
  50 extern bool extension_file_exists(const char *extensionName);
  51
  52 extern ObjectAddress AlterExtensionNamespace(const char *extensionName, const char *newschema,
  53                                                                                          Oid *oldschema);
  54
  55 #endif                                                  /* EXTENSION_H */