PostgreSQL Source Code git master
Typedefs | Functions | Variables
pg_namespace.h File Reference
#include "catalog/genbki.h"
#include "catalog/pg_namespace_d.h"
#include "utils/acl.h"
Include dependency graph for pg_namespace.h:
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Typedefs

typedef FormData_pg_namespace *  Form_pg_namespace
 

Functions

  CATALOG (pg_namespace, 2615, NamespaceRelationId)
 
  DECLARE_TOAST (pg_namespace, 4163, 4164)
 
  DECLARE_UNIQUE_INDEX (pg_namespace_nspname_index, 2684, NamespaceNameIndexId, pg_namespace, btree(nspname name_ops))
 
  DECLARE_UNIQUE_INDEX_PKEY (pg_namespace_oid_index, 2685, NamespaceOidIndexId, pg_namespace, btree(oid oid_ops))
 
  MAKE_SYSCACHE (NAMESPACENAME, pg_namespace_nspname_index, 4)
 
  MAKE_SYSCACHE (NAMESPACEOID, pg_namespace_oid_index, 16)
 
Oid  NamespaceCreate (const char *nspName, Oid ownerId, bool isTemp)
 

Variables

  FormData_pg_namespace
 

Typedef Documentation

◆ Form_pg_namespace

typedef FormData_pg_namespace* Form_pg_namespace

Definition at line 52 of file pg_namespace.h.

Function Documentation

◆ CATALOG()

CATALOG ( pg_namespace  ,
2615  ,
NamespaceRelationId   
)

Definition at line 35 of file pg_namespace.h.

36{
37 Oid oid; /* oid */
38
39 NameData nspname;
40 Oid nspowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
41
42#ifdef CATALOG_VARLEN /* variable-length fields start here */
43 aclitem nspacl[1];
44#endif
#define BKI_LOOKUP(catalog)
Definition: genbki.h:46
#define BKI_DEFAULT(value)
Definition: genbki.h:35
FormData_pg_namespace
Definition: pg_namespace.h:45
unsigned int Oid
Definition: postgres_ext.h:32
Definition: c.h:746

References BKI_DEFAULT, and BKI_LOOKUP.

◆ DECLARE_TOAST()

DECLARE_TOAST ( pg_namespace  ,
4163  ,
4164   
)

◆ DECLARE_UNIQUE_INDEX()

DECLARE_UNIQUE_INDEX ( pg_namespace_nspname_index  ,
2684  ,
NamespaceNameIndexId  ,
pg_namespace  ,
btree(nspname name_ops)   
)

◆ DECLARE_UNIQUE_INDEX_PKEY()

DECLARE_UNIQUE_INDEX_PKEY ( pg_namespace_oid_index  ,
2685  ,
NamespaceOidIndexId  ,
pg_namespace  ,
btree(oid oid_ops)   
)

◆ MAKE_SYSCACHE() [1/2]

MAKE_SYSCACHE ( NAMESPACENAME  ,
pg_namespace_nspname_index  ,
4   
)

◆ MAKE_SYSCACHE() [2/2]

MAKE_SYSCACHE ( NAMESPACEOID  ,
pg_namespace_oid_index  ,
16   
)

◆ NamespaceCreate()

Oid NamespaceCreate ( const char *  nspName,
Oid  ownerId,
bool  isTemp 
)

Definition at line 43 of file pg_namespace.c.

44{
45 Relation nspdesc;
46 HeapTuple tup;
47 Oid nspoid;
48 bool nulls[Natts_pg_namespace];
49 Datum values[Natts_pg_namespace];
50 NameData nname;
51 TupleDesc tupDesc;
52 ObjectAddress myself;
53 int i;
54 Acl *nspacl;
55
56 /* sanity checks */
57 if (!nspName)
58 elog(ERROR, "no namespace name supplied");
59
60 /* make sure there is no existing namespace of same name */
61 if (SearchSysCacheExists1(NAMESPACENAME, PointerGetDatum(nspName)))
63 (errcode(ERRCODE_DUPLICATE_SCHEMA),
64 errmsg("schema \"%s\" already exists", nspName)));
65
66 if (!isTemp)
67 nspacl = get_user_default_acl(OBJECT_SCHEMA, ownerId,
69 else
70 nspacl = NULL;
71
72 nspdesc = table_open(NamespaceRelationId, RowExclusiveLock);
73 tupDesc = nspdesc->rd_att;
74
75 /* initialize nulls and values */
76 for (i = 0; i < Natts_pg_namespace; i++)
77 {
78 nulls[i] = false;
79 values[i] = (Datum) 0;
80 }
81
82 nspoid = GetNewOidWithIndex(nspdesc, NamespaceOidIndexId,
83 Anum_pg_namespace_oid);
84 values[Anum_pg_namespace_oid - 1] = ObjectIdGetDatum(nspoid);
85 namestrcpy(&nname, nspName);
86 values[Anum_pg_namespace_nspname - 1] = NameGetDatum(&nname);
87 values[Anum_pg_namespace_nspowner - 1] = ObjectIdGetDatum(ownerId);
88 if (nspacl != NULL)
89 values[Anum_pg_namespace_nspacl - 1] = PointerGetDatum(nspacl);
90 else
91 nulls[Anum_pg_namespace_nspacl - 1] = true;
92
93
94 tup = heap_form_tuple(tupDesc, values, nulls);
95
96 CatalogTupleInsert(nspdesc, tup);
97 Assert(OidIsValid(nspoid));
98
100
101 /* Record dependencies */
102 myself.classId = NamespaceRelationId;
103 myself.objectId = nspoid;
104 myself.objectSubId = 0;
105
106 /* dependency on owner */
107 recordDependencyOnOwner(NamespaceRelationId, nspoid, ownerId);
108
109 /* dependencies on roles mentioned in default ACL */
110 recordDependencyOnNewAcl(NamespaceRelationId, nspoid, 0, ownerId, nspacl);
111
112 /* dependency on extension ... but not for magic temp schemas */
113 if (!isTemp)
115
116 /* Post creation hook for new schema */
117 InvokeObjectPostCreateHook(NamespaceRelationId, nspoid, 0);
118
119 return nspoid;
120}
void recordDependencyOnNewAcl(Oid classId, Oid objectId, int32 objsubId, Oid ownerId, Acl *acl)
Definition: aclchk.c:4325
Acl * get_user_default_acl(ObjectType objtype, Oid ownerId, Oid nsp_oid)
Definition: aclchk.c:4245
static Datum values[MAXATTR]
Definition: bootstrap.c:153
#define OidIsValid(objectId)
Definition: c.h:774
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:448
int errcode(int sqlerrcode)
Definition: elog.c:854
int errmsg(const char *fmt,...)
Definition: elog.c:1071
#define ERROR
Definition: elog.h:39
#define elog(elevel,...)
Definition: elog.h:226
#define ereport(elevel,...)
Definition: elog.h:150
Assert(PointerIsAligned(start, uint64))
HeapTuple heap_form_tuple(TupleDesc tupleDescriptor, const Datum *values, const bool *isnull)
Definition: heaptuple.c:1117
void CatalogTupleInsert(Relation heapRel, HeapTuple tup)
Definition: indexing.c:233
i
int i
Definition: isn.c:77
#define RowExclusiveLock
Definition: lockdefs.h:38
void namestrcpy(Name name, const char *str)
Definition: name.c:233
#define InvokeObjectPostCreateHook(classId, objectId, subId)
Definition: objectaccess.h:173
@ OBJECT_SCHEMA
Definition: parsenodes.h:2361
void recordDependencyOnCurrentExtension(const ObjectAddress *object, bool isReplace)
Definition: pg_depend.c:193
void recordDependencyOnOwner(Oid classId, Oid objectId, Oid owner)
Definition: pg_shdepend.c:168
static Datum PointerGetDatum(const void *X)
Definition: postgres.h:332
static Datum ObjectIdGetDatum(Oid X)
Definition: postgres.h:262
static Datum NameGetDatum(const NameData *X)
Definition: postgres.h:383
uint64_t Datum
Definition: postgres.h:70
#define InvalidOid
Definition: postgres_ext.h:37
Definition: array.h:93
int32 objectSubId
Definition: objectaddress.h:28
Definition: rel.h:56
TupleDesc rd_att
Definition: rel.h:112
#define SearchSysCacheExists1(cacheId, key1)
Definition: syscache.h:100
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:126
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:40

References Assert(), CatalogTupleInsert(), ObjectAddress::classId, elog, ereport, errcode(), errmsg(), ERROR, get_user_default_acl(), GetNewOidWithIndex(), heap_form_tuple(), i, InvalidOid, InvokeObjectPostCreateHook, NameGetDatum(), namestrcpy(), OBJECT_SCHEMA, ObjectAddress::objectId, ObjectIdGetDatum(), ObjectAddress::objectSubId, OidIsValid, PointerGetDatum(), RelationData::rd_att, recordDependencyOnCurrentExtension(), recordDependencyOnNewAcl(), recordDependencyOnOwner(), RowExclusiveLock, SearchSysCacheExists1, table_close(), table_open(), and values.

Referenced by CreateSchemaCommand(), and InitTempTableNamespace().

Variable Documentation

◆ FormData_pg_namespace

FormData_pg_namespace

Definition at line 45 of file pg_namespace.h.

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