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This introduces a new dependency type which marks an object as depending on an extension, such that if the extension is dropped, the object automatically goes away; and also, if the database is dumped, the object is included in the dump output. Currently the grammar supports this for indexes, triggers, materialized views and functions only, although the utility code is generic so adding support for more object types is a matter of touching the parser rules only. Author: Abhijit Menon-Sen Reviewed-by: Alexander Korotkov, Álvaro Herrera Discussion: http://www.postgresql.org/message-id/20160115062649.GA5068@toroid.org
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/*-------------------------------------------------------------------------
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*
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* objectaddress.h
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* functions for working with object addresses
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*
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* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/catalog/objectaddress.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef OBJECTADDRESS_H
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#define OBJECTADDRESS_H
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#include "nodes/pg_list.h"
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#include "storage/lockdefs.h"
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#include "utils/acl.h"
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#include "utils/relcache.h"
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/*
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* An ObjectAddress represents a database object of any type.
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*/
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typedef struct ObjectAddress
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{
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Oid classId; /* Class Id from pg_class */
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Oid objectId; /* OID of the object */
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int32 objectSubId; /* Subitem within object (eg column), or 0 */
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} ObjectAddress;
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extern const ObjectAddress InvalidObjectAddress;
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#define ObjectAddressSubSet(addr, class_id, object_id, object_sub_id) \
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do { \
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(addr).classId = (class_id); \
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(addr).objectId = (object_id); \
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(addr).objectSubId = (object_sub_id); \
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} while (0)
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#define ObjectAddressSet(addr, class_id, object_id) \
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ObjectAddressSubSet(addr, class_id, object_id, 0)
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extern ObjectAddress get_object_address(ObjectType objtype, List *objname,
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List *objargs, Relation *relp,
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LOCKMODE lockmode, bool missing_ok);
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extern ObjectAddress get_object_address_rv(ObjectType objtype, RangeVar *rel,
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List *objname, List *objargs, Relation *relp,
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LOCKMODE lockmode, bool missing_ok);
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extern void check_object_ownership(Oid roleid,
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ObjectType objtype, ObjectAddress address,
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List *objname, List *objargs, Relation relation);
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extern Oid get_object_namespace(const ObjectAddress *address);
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extern bool is_objectclass_supported(Oid class_id);
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extern Oid get_object_oid_index(Oid class_id);
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extern int get_object_catcache_oid(Oid class_id);
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extern int get_object_catcache_name(Oid class_id);
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extern AttrNumber get_object_attnum_name(Oid class_id);
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extern AttrNumber get_object_attnum_namespace(Oid class_id);
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extern AttrNumber get_object_attnum_owner(Oid class_id);
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extern AttrNumber get_object_attnum_acl(Oid class_id);
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extern AclObjectKind get_object_aclkind(Oid class_id);
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extern bool get_object_namensp_unique(Oid class_id);
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extern HeapTuple get_catalog_object_by_oid(Relation catalog,
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Oid objectId);
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extern char *getObjectDescription(const ObjectAddress *object);
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extern char *getObjectDescriptionOids(Oid classid, Oid objid);
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extern int read_objtype_from_string(const char *objtype);
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extern char *getObjectTypeDescription(const ObjectAddress *object);
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extern char *getObjectIdentity(const ObjectAddress *address);
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extern char *getObjectIdentityParts(const ObjectAddress *address,
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List **objname, List **objargs);
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extern ArrayType *strlist_to_textarray(List *list);
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#endif /* OBJECTADDRESS_H */
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