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catalog.c
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1 /*-------------------------------------------------------------------------
2  *
3  * catalog.c
4  * routines concerned with catalog naming conventions and other
5  * bits of hard-wired knowledge
6  *
7  *
8  * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
9  * Portions Copyright (c) 1994, Regents of the University of California
10  *
11  *
12  * IDENTIFICATION
13  * src/backend/catalog/catalog.c
14  *
15  *-------------------------------------------------------------------------
16  */
17 
18 #include "postgres.h"
19 
20 #include <fcntl.h>
21 #include <unistd.h>
22 
23 #include "access/genam.h"
24 #include "access/htup_details.h"
25 #include "access/sysattr.h"
26 #include "access/table.h"
27 #include "access/transam.h"
28 #include "catalog/catalog.h"
29 #include "catalog/indexing.h"
30 #include "catalog/namespace.h"
32 #include "catalog/pg_authid.h"
33 #include "catalog/pg_database.h"
35 #include "catalog/pg_namespace.h"
37 #include "catalog/pg_shdepend.h"
39 #include "catalog/pg_shseclabel.h"
41 #include "catalog/pg_tablespace.h"
42 #include "catalog/pg_type.h"
43 #include "catalog/toasting.h"
44 #include "miscadmin.h"
45 #include "storage/fd.h"
46 #include "utils/fmgroids.h"
47 #include "utils/fmgrprotos.h"
48 #include "utils/rel.h"
49 #include "utils/snapmgr.h"
50 #include "utils/syscache.h"
51 
52 /*
53  * IsSystemRelation
54  * True iff the relation is either a system catalog or a toast table.
55  * See IsCatalogRelation for the exact definition of a system catalog.
56  *
57  * We treat toast tables of user relations as "system relations" for
58  * protection purposes, e.g. you can't change their schemas without
59  * special permissions. Therefore, most uses of this function are
60  * checking whether allow_system_table_mods restrictions apply.
61  * For other purposes, consider whether you shouldn't be using
62  * IsCatalogRelation instead.
63  *
64  * This function does not perform any catalog accesses.
65  * Some callers rely on that!
66  */
67 bool
69 {
70  return IsSystemClass(RelationGetRelid(relation), relation->rd_rel);
71 }
72 
73 /*
74  * IsSystemClass
75  * Like the above, but takes a Form_pg_class as argument.
76  * Used when we do not want to open the relation and have to
77  * search pg_class directly.
78  */
79 bool
81 {
82  /* IsCatalogRelationOid is a bit faster, so test that first */
83  return (IsCatalogRelationOid(relid) || IsToastClass(reltuple));
84 }
85 
86 /*
87  * IsCatalogRelation
88  * True iff the relation is a system catalog.
89  *
90  * By a system catalog, we mean one that is created during the bootstrap
91  * phase of initdb. That includes not just the catalogs per se, but
92  * also their indexes, and TOAST tables and indexes if any.
93  *
94  * This function does not perform any catalog accesses.
95  * Some callers rely on that!
96  */
97 bool
99 {
100  return IsCatalogRelationOid(RelationGetRelid(relation));
101 }
102 
103 /*
104  * IsCatalogRelationOid
105  * True iff the relation identified by this OID is a system catalog.
106  *
107  * By a system catalog, we mean one that is created during the bootstrap
108  * phase of initdb. That includes not just the catalogs per se, but
109  * also their indexes, and TOAST tables and indexes if any.
110  *
111  * This function does not perform any catalog accesses.
112  * Some callers rely on that!
113  */
114 bool
116 {
117  /*
118  * We consider a relation to be a system catalog if it has an OID that was
119  * manually assigned or assigned by genbki.pl. This includes all the
120  * defined catalogs, their indexes, and their TOAST tables and indexes.
121  *
122  * This rule excludes the relations in information_schema, which are not
123  * integral to the system and can be treated the same as user relations.
124  * (Since it's valid to drop and recreate information_schema, any rule
125  * that did not act this way would be wrong.)
126  *
127  * This test is reliable since an OID wraparound will skip this range of
128  * OIDs; see GetNewObjectId().
129  */
130  return (relid < (Oid) FirstBootstrapObjectId);
131 }
132 
133 /*
134  * IsToastRelation
135  * True iff relation is a TOAST support relation (or index).
136  *
137  * Does not perform any catalog accesses.
138  */
139 bool
141 {
142  /*
143  * What we actually check is whether the relation belongs to a pg_toast
144  * namespace. This should be equivalent because of restrictions that are
145  * enforced elsewhere against creating user relations in, or moving
146  * relations into/out of, a pg_toast namespace. Notice also that this
147  * will not say "true" for toast tables belonging to other sessions' temp
148  * tables; we expect that other mechanisms will prevent access to those.
149  */
150  return IsToastNamespace(RelationGetNamespace(relation));
151 }
152 
153 /*
154  * IsToastClass
155  * Like the above, but takes a Form_pg_class as argument.
156  * Used when we do not want to open the relation and have to
157  * search pg_class directly.
158  */
159 bool
161 {
162  Oid relnamespace = reltuple->relnamespace;
163 
164  return IsToastNamespace(relnamespace);
165 }
166 
167 /*
168  * IsCatalogNamespace
169  * True iff namespace is pg_catalog.
170  *
171  * Does not perform any catalog accesses.
172  *
173  * NOTE: the reason this isn't a macro is to avoid having to include
174  * catalog/pg_namespace.h in a lot of places.
175  */
176 bool
178 {
179  return namespaceId == PG_CATALOG_NAMESPACE;
180 }
181 
182 /*
183  * IsToastNamespace
184  * True iff namespace is pg_toast or my temporary-toast-table namespace.
185  *
186  * Does not perform any catalog accesses.
187  *
188  * Note: this will return false for temporary-toast-table namespaces belonging
189  * to other backends. Those are treated the same as other backends' regular
190  * temp table namespaces, and access is prevented where appropriate.
191  * If you need to check for those, you may be able to use isAnyTempNamespace,
192  * but beware that that does involve a catalog access.
193  */
194 bool
195 IsToastNamespace(Oid namespaceId)
196 {
197  return (namespaceId == PG_TOAST_NAMESPACE) ||
198  isTempToastNamespace(namespaceId);
199 }
200 
201 
202 /*
203  * IsReservedName
204  * True iff name starts with the pg_ prefix.
205  *
206  * For some classes of objects, the prefix pg_ is reserved for
207  * system objects only. As of 8.0, this was only true for
208  * schema and tablespace names. With 9.6, this is also true
209  * for roles.
210  */
211 bool
212 IsReservedName(const char *name)
213 {
214  /* ugly coding for speed */
215  return (name[0] == 'p' &&
216  name[1] == 'g' &&
217  name[2] == '_');
218 }
219 
220 
221 /*
222  * IsSharedRelation
223  * Given the OID of a relation, determine whether it's supposed to be
224  * shared across an entire database cluster.
225  *
226  * In older releases, this had to be hard-wired so that we could compute the
227  * locktag for a relation and lock it before examining its catalog entry.
228  * Since we now have MVCC catalog access, the race conditions that made that
229  * a hard requirement are gone, so we could look at relaxing this restriction.
230  * However, if we scanned the pg_class entry to find relisshared, and only
231  * then locked the relation, pg_class could get updated in the meantime,
232  * forcing us to scan the relation again, which would definitely be complex
233  * and might have undesirable performance consequences. Fortunately, the set
234  * of shared relations is fairly static, so a hand-maintained list of their
235  * OIDs isn't completely impractical.
236  */
237 bool
239 {
240  /* These are the shared catalogs (look for BKI_SHARED_RELATION) */
241  if (relationId == AuthIdRelationId ||
242  relationId == AuthMemRelationId ||
243  relationId == DatabaseRelationId ||
244  relationId == SharedDescriptionRelationId ||
245  relationId == SharedDependRelationId ||
246  relationId == SharedSecLabelRelationId ||
247  relationId == TableSpaceRelationId ||
248  relationId == DbRoleSettingRelationId ||
249  relationId == ReplicationOriginRelationId ||
250  relationId == SubscriptionRelationId)
251  return true;
252  /* These are their indexes (see indexing.h) */
253  if (relationId == AuthIdRolnameIndexId ||
254  relationId == AuthIdOidIndexId ||
255  relationId == AuthMemRoleMemIndexId ||
256  relationId == AuthMemMemRoleIndexId ||
257  relationId == DatabaseNameIndexId ||
258  relationId == DatabaseOidIndexId ||
259  relationId == SharedDescriptionObjIndexId ||
260  relationId == SharedDependDependerIndexId ||
261  relationId == SharedDependReferenceIndexId ||
262  relationId == SharedSecLabelObjectIndexId ||
263  relationId == TablespaceOidIndexId ||
264  relationId == TablespaceNameIndexId ||
265  relationId == DbRoleSettingDatidRolidIndexId ||
266  relationId == ReplicationOriginIdentIndex ||
267  relationId == ReplicationOriginNameIndex ||
268  relationId == SubscriptionObjectIndexId ||
269  relationId == SubscriptionNameIndexId)
270  return true;
271  /* These are their toast tables and toast indexes (see toasting.h) */
272  if (relationId == PgAuthidToastTable ||
273  relationId == PgAuthidToastIndex ||
274  relationId == PgDatabaseToastTable ||
275  relationId == PgDatabaseToastIndex ||
276  relationId == PgDbRoleSettingToastTable ||
277  relationId == PgDbRoleSettingToastIndex ||
278  relationId == PgReplicationOriginToastTable ||
279  relationId == PgReplicationOriginToastIndex ||
280  relationId == PgShdescriptionToastTable ||
281  relationId == PgShdescriptionToastIndex ||
282  relationId == PgShseclabelToastTable ||
283  relationId == PgShseclabelToastIndex ||
284  relationId == PgSubscriptionToastTable ||
285  relationId == PgSubscriptionToastIndex ||
286  relationId == PgTablespaceToastTable ||
287  relationId == PgTablespaceToastIndex)
288  return true;
289  return false;
290 }
291 
292 
293 /*
294  * GetNewOidWithIndex
295  * Generate a new OID that is unique within the system relation.
296  *
297  * Since the OID is not immediately inserted into the table, there is a
298  * race condition here; but a problem could occur only if someone else
299  * managed to cycle through 2^32 OIDs and generate the same OID before we
300  * finish inserting our row. This seems unlikely to be a problem. Note
301  * that if we had to *commit* the row to end the race condition, the risk
302  * would be rather higher; therefore we use SnapshotAny in the test, so that
303  * we will see uncommitted rows. (We used to use SnapshotDirty, but that has
304  * the disadvantage that it ignores recently-deleted rows, creating a risk
305  * of transient conflicts for as long as our own MVCC snapshots think a
306  * recently-deleted row is live. The risk is far higher when selecting TOAST
307  * OIDs, because SnapshotToast considers dead rows as active indefinitely.)
308  *
309  * Note that we are effectively assuming that the table has a relatively small
310  * number of entries (much less than 2^32) and there aren't very long runs of
311  * consecutive existing OIDs. This is a mostly reasonable assumption for
312  * system catalogs.
313  *
314  * Caller must have a suitable lock on the relation.
315  */
316 Oid
317 GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
318 {
319  Oid newOid;
320  SysScanDesc scan;
322  bool collides;
323 
324  /* Only system relations are supported */
325  Assert(IsSystemRelation(relation));
326 
327  /* In bootstrap mode, we don't have any indexes to use */
329  return GetNewObjectId();
330 
331  /*
332  * We should never be asked to generate a new pg_type OID during
333  * pg_upgrade; doing so would risk collisions with the OIDs it wants to
334  * assign. Hitting this assert means there's some path where we failed to
335  * ensure that a type OID is determined by commands in the dump script.
336  */
337  Assert(!IsBinaryUpgrade || RelationGetRelid(relation) != TypeRelationId);
338 
339  /* Generate new OIDs until we find one not in the table */
340  do
341  {
343 
344  newOid = GetNewObjectId();
345 
346  ScanKeyInit(&key,
347  oidcolumn,
348  BTEqualStrategyNumber, F_OIDEQ,
349  ObjectIdGetDatum(newOid));
350 
351  /* see notes above about using SnapshotAny */
352  scan = systable_beginscan(relation, indexId, true,
353  SnapshotAny, 1, &key);
354 
355  collides = HeapTupleIsValid(systable_getnext(scan));
356 
357  systable_endscan(scan);
358  } while (collides);
359 
360  return newOid;
361 }
362 
363 /*
364  * GetNewRelFileNode
365  * Generate a new relfilenode number that is unique within the
366  * database of the given tablespace.
367  *
368  * If the relfilenode will also be used as the relation's OID, pass the
369  * opened pg_class catalog, and this routine will guarantee that the result
370  * is also an unused OID within pg_class. If the result is to be used only
371  * as a relfilenode for an existing relation, pass NULL for pg_class.
372  *
373  * As with GetNewOidWithIndex(), there is some theoretical risk of a race
374  * condition, but it doesn't seem worth worrying about.
375  *
376  * Note: we don't support using this in bootstrap mode. All relations
377  * created by bootstrap have preassigned OIDs, so there's no need.
378  */
379 Oid
380 GetNewRelFileNode(Oid reltablespace, Relation pg_class, char relpersistence)
381 {
382  RelFileNodeBackend rnode;
383  char *rpath;
384  bool collides;
385  BackendId backend;
386 
387  /*
388  * If we ever get here during pg_upgrade, there's something wrong; all
389  * relfilenode assignments during a binary-upgrade run should be
390  * determined by commands in the dump script.
391  */
393 
394  switch (relpersistence)
395  {
396  case RELPERSISTENCE_TEMP:
397  backend = BackendIdForTempRelations();
398  break;
399  case RELPERSISTENCE_UNLOGGED:
400  case RELPERSISTENCE_PERMANENT:
401  backend = InvalidBackendId;
402  break;
403  default:
404  elog(ERROR, "invalid relpersistence: %c", relpersistence);
405  return InvalidOid; /* placate compiler */
406  }
407 
408  /* This logic should match RelationInitPhysicalAddr */
409  rnode.node.spcNode = reltablespace ? reltablespace : MyDatabaseTableSpace;
410  rnode.node.dbNode = (rnode.node.spcNode == GLOBALTABLESPACE_OID) ? InvalidOid : MyDatabaseId;
411 
412  /*
413  * The relpath will vary based on the backend ID, so we must initialize
414  * that properly here to make sure that any collisions based on filename
415  * are properly detected.
416  */
417  rnode.backend = backend;
418 
419  do
420  {
422 
423  /* Generate the OID */
424  if (pg_class)
426  Anum_pg_class_oid);
427  else
428  rnode.node.relNode = GetNewObjectId();
429 
430  /* Check for existing file of same name */
431  rpath = relpath(rnode, MAIN_FORKNUM);
432 
433  if (access(rpath, F_OK) == 0)
434  {
435  /* definite collision */
436  collides = true;
437  }
438  else
439  {
440  /*
441  * Here we have a little bit of a dilemma: if errno is something
442  * other than ENOENT, should we declare a collision and loop? In
443  * practice it seems best to go ahead regardless of the errno. If
444  * there is a colliding file we will get an smgr failure when we
445  * attempt to create the new relation file.
446  */
447  collides = false;
448  }
449 
450  pfree(rpath);
451  } while (collides);
452 
453  return rnode.node.relNode;
454 }
455 
456 /*
457  * SQL callable interface for GetNewOidWithIndex(). Outside of initdb's
458  * direct insertions into catalog tables, and recovering from corruption, this
459  * should rarely be needed.
460  *
461  * Function is intentionally not documented in the user facing docs.
462  */
463 Datum
465 {
466  Oid reloid = PG_GETARG_OID(0);
468  Oid idxoid = PG_GETARG_OID(2);
469  Relation rel;
470  Relation idx;
471  HeapTuple atttuple;
472  Form_pg_attribute attform;
473  AttrNumber attno;
474  Oid newoid;
475 
476  /*
477  * As this function is not intended to be used during normal running, and
478  * only supports system catalogs (which require superuser permissions to
479  * modify), just checking for superuser ought to not obstruct valid
480  * usecases.
481  */
482  if (!superuser())
483  ereport(ERROR,
484  (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
485  errmsg("must be superuser to call pg_nextoid()")));
486 
487  rel = table_open(reloid, RowExclusiveLock);
488  idx = index_open(idxoid, RowExclusiveLock);
489 
490  if (!IsSystemRelation(rel))
491  ereport(ERROR,
492  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
493  errmsg("pg_nextoid() can only be used on system catalogs")));
494 
495  if (idx->rd_index->indrelid != RelationGetRelid(rel))
496  ereport(ERROR,
497  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
498  errmsg("index \"%s\" does not belong to table \"%s\"",
500  RelationGetRelationName(rel))));
501 
502  atttuple = SearchSysCacheAttName(reloid, NameStr(*attname));
503  if (!HeapTupleIsValid(atttuple))
504  ereport(ERROR,
505  (errcode(ERRCODE_UNDEFINED_COLUMN),
506  errmsg("column \"%s\" of relation \"%s\" does not exist",
507  NameStr(*attname), RelationGetRelationName(rel))));
508 
509  attform = ((Form_pg_attribute) GETSTRUCT(atttuple));
510  attno = attform->attnum;
511 
512  if (attform->atttypid != OIDOID)
513  ereport(ERROR,
514  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
515  errmsg("column \"%s\" is not of type oid",
516  NameStr(*attname))));
517 
519  idx->rd_index->indkey.values[0] != attno)
520  ereport(ERROR,
521  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
522  errmsg("index \"%s\" is not the index for column \"%s\"",
524  NameStr(*attname))));
525 
526  newoid = GetNewOidWithIndex(rel, idxoid, attno);
527 
528  ReleaseSysCache(atttuple);
531 
532  return newoid;
533 }
Oid GetNewOidWithIndex(Relation relation, Oid indexId, AttrNumber oidcolumn)
Definition: catalog.c:317
bool IsToastRelation(Relation relation)
Definition: catalog.c:140
bool IsCatalogRelation(Relation relation)
Definition: catalog.c:98
void table_close(Relation relation, LOCKMODE lockmode)
Definition: table.c:133
void systable_endscan(SysScanDesc sysscan)
Definition: genam.c:529
#define GETSTRUCT(TUP)
Definition: htup_details.h:655
#define PgShseclabelToastIndex
Definition: toasting.h:97
bool IsSystemRelation(Relation relation)
Definition: catalog.c:68
#define SharedDependDependerIndexId
Definition: indexing.h:223
#define PgAuthidToastTable
Definition: toasting.h:81
#define PgTablespaceToastTable
Definition: toasting.h:102
#define DbRoleSettingDatidRolidIndexId
Definition: indexing.h:314
int errcode(int sqlerrcode)
Definition: elog.c:610
bool superuser(void)
Definition: superuser.c:46
Datum idx(PG_FUNCTION_ARGS)
Definition: _int_op.c:259
#define PgShseclabelToastTable
Definition: toasting.h:96
#define AuthIdOidIndexId
Definition: indexing.h:101
#define PgSubscriptionToastTable
Definition: toasting.h:99
bool IsToastNamespace(Oid namespaceId)
Definition: catalog.c:195
Form_pg_class rd_rel
Definition: rel.h:109
unsigned int Oid
Definition: postgres_ext.h:31
bool IsReservedName(const char *name)
Definition: catalog.c:212
#define PgDatabaseToastTable
Definition: toasting.h:84
SysScanDesc systable_beginscan(Relation heapRelation, Oid indexId, bool indexOK, Snapshot snapshot, int nkeys, ScanKey key)
Definition: genam.c:356
bool IsBinaryUpgrade
Definition: globals.c:110
Oid MyDatabaseTableSpace
Definition: globals.c:87
bool IsSystemClass(Oid relid, Form_pg_class reltuple)
Definition: catalog.c:80
bool IsCatalogRelationOid(Oid relid)
Definition: catalog.c:115
#define PgTablespaceToastIndex
Definition: toasting.h:103
Oid GetNewObjectId(void)
Definition: varsup.c:509
Form_pg_index rd_index
Definition: rel.h:174
HeapTuple systable_getnext(SysScanDesc sysscan)
Definition: genam.c:448
void pfree(void *pointer)
Definition: mcxt.c:1056
bool IsToastClass(Form_pg_class reltuple)
Definition: catalog.c:160
#define ReplicationOriginIdentIndex
Definition: indexing.h:337
#define ObjectIdGetDatum(X)
Definition: postgres.h:507
#define ERROR
Definition: elog.h:43
NameData attname
Definition: pg_attribute.h:40
#define TablespaceOidIndexId
Definition: indexing.h:241
Definition: c.h:609
#define BackendIdForTempRelations()
Definition: backendid.h:34
#define PgShdescriptionToastTable
Definition: toasting.h:93
#define PgReplicationOriginToastTable
Definition: toasting.h:90
#define PG_GETARG_OID(n)
Definition: fmgr.h:275
#define RowExclusiveLock
Definition: lockdefs.h:38
#define RelationGetRelationName(relation)
Definition: rel.h:490
#define DatabaseOidIndexId
Definition: indexing.h:146
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:193
#define FirstBootstrapObjectId
Definition: transam.h:154
#define IndexRelationGetNumberOfKeyAttributes(relation)
Definition: rel.h:475
#define ClassOidIndexId
Definition: indexing.h:114
#define PgShdescriptionToastIndex
Definition: toasting.h:94
#define PgDbRoleSettingToastTable
Definition: toasting.h:87
bool isTempToastNamespace(Oid namespaceId)
Definition: namespace.c:3169
#define AuthMemRoleMemIndexId
Definition: indexing.h:104
#define InvalidBackendId
Definition: backendid.h:23
uintptr_t Datum
Definition: postgres.h:367
void ReleaseSysCache(HeapTuple tuple)
Definition: syscache.c:1164
int BackendId
Definition: backendid.h:21
Oid MyDatabaseId
Definition: globals.c:85
bool IsSharedRelation(Oid relationId)
Definition: catalog.c:238
#define InvalidOid
Definition: postgres_ext.h:36
#define ereport(elevel,...)
Definition: elog.h:144
#define SharedDescriptionObjIndexId
Definition: indexing.h:156
RelFileNode node
Definition: relfilenode.h:74
#define PgDatabaseToastIndex
Definition: toasting.h:85
#define PgAuthidToastIndex
Definition: toasting.h:82
#define HeapTupleIsValid(tuple)
Definition: htup.h:78
#define PgReplicationOriginToastIndex
Definition: toasting.h:91
#define Assert(condition)
Definition: c.h:738
#define AuthMemMemRoleIndexId
Definition: indexing.h:106
BackendId backend
Definition: relfilenode.h:75
Oid GetNewRelFileNode(Oid reltablespace, Relation pg_class, char relpersistence)
Definition: catalog.c:380
HeapTuple SearchSysCacheAttName(Oid relid, const char *attname)
Definition: syscache.c:1257
#define DatabaseNameIndexId
Definition: indexing.h:144
const char * name
Definition: encode.c:561
#define SnapshotAny
Definition: snapmgr.h:69
void index_close(Relation relation, LOCKMODE lockmode)
Definition: indexam.c:158
#define SharedSecLabelObjectIndexId
Definition: indexing.h:320
bool IsCatalogNamespace(Oid namespaceId)
Definition: catalog.c:177
#define IsBootstrapProcessingMode()
Definition: miscadmin.h:392
FormData_pg_class * Form_pg_class
Definition: pg_class.h:153
#define TablespaceNameIndexId
Definition: indexing.h:243
#define SubscriptionNameIndexId
Definition: indexing.h:361
int errmsg(const char *fmt,...)
Definition: elog.c:824
#define PgSubscriptionToastIndex
Definition: toasting.h:100
#define elog(elevel,...)
Definition: elog.h:214
#define relpath(rnode, forknum)
Definition: relpath.h:87
#define NameStr(name)
Definition: c.h:615
void ScanKeyInit(ScanKey entry, AttrNumber attributeNumber, StrategyNumber strategy, RegProcedure procedure, Datum argument)
Definition: scankey.c:76
#define PG_FUNCTION_ARGS
Definition: fmgr.h:193
#define CHECK_FOR_INTERRUPTS()
Definition: miscadmin.h:99
#define ReplicationOriginNameIndex
Definition: indexing.h:340
#define SharedDependReferenceIndexId
Definition: indexing.h:225
Datum pg_nextoid(PG_FUNCTION_ARGS)
Definition: catalog.c:464
Relation table_open(Oid relationId, LOCKMODE lockmode)
Definition: table.c:39
#define PgDbRoleSettingToastIndex
Definition: toasting.h:88
#define AuthIdRolnameIndexId
Definition: indexing.h:99
int16 AttrNumber
Definition: attnum.h:21
#define RelationGetRelid(relation)
Definition: rel.h:456
Relation index_open(Oid relationId, LOCKMODE lockmode)
Definition: indexam.c:132
#define BTEqualStrategyNumber
Definition: stratnum.h:31
#define PG_GETARG_NAME(n)
Definition: fmgr.h:278
#define RelationGetNamespace(relation)
Definition: rel.h:497
#define SubscriptionObjectIndexId
Definition: indexing.h:358