]> granicus.if.org Git - postgresql/commitdiff
Checking to decide whether relations are system relations now depends
authorTom Lane <tgl@sss.pgh.pa.us>
Fri, 12 Apr 2002 20:38:31 +0000 (20:38 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Fri, 12 Apr 2002 20:38:31 +0000 (20:38 +0000)
on the namespace not the name; pg_ is not a reserved prefix for table
names anymore.  From Fernando Nasser.

22 files changed:
src/backend/catalog/aclchk.c
src/backend/catalog/catalog.c
src/backend/catalog/heap.c
src/backend/catalog/index.c
src/backend/catalog/namespace.c
src/backend/commands/analyze.c
src/backend/commands/command.c
src/backend/commands/creatinh.c
src/backend/commands/indexcmds.c
src/backend/commands/rename.c
src/backend/commands/trigger.c
src/backend/commands/vacuum.c
src/backend/executor/execUtils.c
src/backend/optimizer/util/plancat.c
src/backend/tcop/utility.c
src/backend/utils/cache/inval.c
src/backend/utils/cache/relcache.c
src/include/catalog/catalog.h
src/test/regress/expected/alter_table.out
src/test/regress/expected/errors.out
src/test/regress/sql/alter_table.sql
src/test/regress/sql/errors.sql

index e440489a34acf235707878b211a13b5363e86193..5f223aab9d9619f692dfa159acb9abb6c8e848ac 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/catalog/aclchk.c,v 1.64 2002/04/11 19:59:56 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/catalog/aclchk.c,v 1.65 2002/04/12 20:38:17 tgl Exp $
  *
  * NOTES
  *       See acl.h.
@@ -726,7 +726,6 @@ pg_class_aclcheck(Oid table_oid, Oid userid, AclMode mode)
        int32           result;
        bool            usesuper,
                                usecatupd;
-       char       *relname;
        HeapTuple       tuple;
        Datum           aclDatum;
        bool            isNull;
@@ -761,9 +760,9 @@ pg_class_aclcheck(Oid table_oid, Oid userid, AclMode mode)
         * pg_shadow.usecatupd is set.  (This is to let superusers protect
         * themselves from themselves.)
         */
-       relname = NameStr(((Form_pg_class) GETSTRUCT(tuple))->relname);
        if ((mode & (ACL_INSERT | ACL_UPDATE | ACL_DELETE)) &&
-               !allowSystemTableMods && IsSystemRelationName(relname) &&
+               !allowSystemTableMods &&
+               IsSystemClass((Form_pg_class) GETSTRUCT(tuple)) &&
                !usecatupd)
        {
 #ifdef ACLDEBUG
index 2a6ddf11ff3a8d685833ce82c21c65af9c138348..6e198772754b553d44adb0201030fb31233d040f 100644 (file)
@@ -1,6 +1,7 @@
 /*-------------------------------------------------------------------------
  *
  * catalog.c
+ *             routines concerned with catalog naming conventions
  *
  *
  * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
@@ -8,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/catalog/catalog.c,v 1.44 2001/11/16 23:30:35 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/catalog/catalog.c,v 1.45 2002/04/12 20:38:18 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -18,9 +19,9 @@
 #include "access/transam.h"
 #include "catalog/catalog.h"
 #include "catalog/catname.h"
-#include "catalog/pg_type.h"
+#include "catalog/pg_namespace.h"
 #include "miscadmin.h"
-#include "utils/lsyscache.h"
+
 
 /*
  * relpath                     - construct path to a relation's file
@@ -74,54 +75,121 @@ GetDatabasePath(Oid tblNode)
 
 
 /*
- * IsSystemRelationName
- *             True iff name is the name of a system catalog relation.
+ * IsSystemRelation
+ *             True iff the relation is a system catalog relation.
  *
- *             NB: TOAST relations are considered system relations by this test.
+ *             NB: TOAST relations are considered system relations by this test
+ *             for compatibility with the old IsSystemRelationName function.
  *             This is appropriate in many places but not all.  Where it's not,
- *             also check IsToastRelationName.
+ *             also check IsToastRelation.
  *
- *             We now make a new requirement where system catalog relns must begin
- *             with pg_ while user relns are forbidden to do so.  Make the test
- *             trivial and instantaneous.
+ *             We now just test if the relation is in the system catalog namespace;
+ *             so it's no longer necessary to forbid user relations from having
+ *             names starting with pg_.  Now only schema names have the pg_
+ *             distinction/requirement.
+ */
+bool
+IsSystemRelation(Relation relation)
+{
+       return  IsSystemNamespace(RelationGetNamespace(relation)) ||
+                       IsToastNamespace(RelationGetNamespace(relation));
+}
+
+/*
+ * IsSystemClass
+ *             Like the above, but takes a Form_pg_class as argument.
+ *             Used when we do not want to open the relation and have to
+ *             search pg_class directly.
+ */
+bool
+IsSystemClass(Form_pg_class reltuple)
+{
+       Oid             relnamespace = reltuple->relnamespace;
+
+       return  IsSystemNamespace(relnamespace) ||
+                       IsToastNamespace(relnamespace);
+}
+
+/*
+ * IsToastRelation
+ *             True iff relation is a TOAST support relation (or index).
+ */
+bool
+IsToastRelation(Relation relation)
+{
+       return IsToastNamespace(RelationGetNamespace(relation));
+}
+
+/*
+ * IsToastClass
+ *             Like the above, but takes a Form_pg_class as argument.
+ *             Used when we do not want to open the relation and have to
+ *             search pg_class directly.
+ */
+bool
+IsToastClass(Form_pg_class reltuple)
+{
+       Oid             relnamespace = reltuple->relnamespace;
+
+       return  IsToastNamespace(relnamespace);
+}
+
+/*
+ * IsSystemNamespace
+ *             True iff namespace is pg_catalog.
  *
- *             XXX this is way bogus. -- pma
+ * NOTE: the reason this isn't a macro is to avoid having to include
+ * catalog/pg_namespace.h in a lot of places.
  */
 bool
-IsSystemRelationName(const char *relname)
+IsSystemNamespace(Oid namespaceId)
 {
-       /* ugly coding for speed */
-       return (relname[0] == 'p' &&
-                       relname[1] == 'g' &&
-                       relname[2] == '_');
+       return namespaceId == PG_CATALOG_NAMESPACE;
+}
+
+/*
+ * IsToastNamespace
+ *             True iff namespace is pg_toast.
+ *
+ * NOTE: the reason this isn't a macro is to avoid having to include
+ * catalog/pg_namespace.h in a lot of places.
+ */
+bool
+IsToastNamespace(Oid namespaceId)
+{
+       return namespaceId == PG_TOAST_NAMESPACE;
 }
 
+
 /*
- * IsToastRelationName
- *             True iff name is the name of a TOAST support relation (or index).
+ * IsReservedName
+ *             True iff name starts with the pg_ prefix.
+ *
+ *             For some classes of objects, the prefix pg_ is reserved
+ *             for system objects only.
  */
 bool
-IsToastRelationName(const char *relname)
+IsReservedName(const char *name)
 {
-       return strncmp(relname, "pg_toast_", 9) == 0;
+       /* ugly coding for speed */
+       return (name[0] == 'p' &&
+                       name[1] == 'g' &&
+                       name[2] == '_');
 }
 
 /*
  * IsSharedSystemRelationName
  *             True iff name is the name of a shared system catalog relation.
+ *
+ *             Note: This function assumes that this is a system relation
+ *             in the first place.  If that is not known, check the namespace
+ *             (with IsSystemNamespace) before calling this function.
  */
 bool
 IsSharedSystemRelationName(const char *relname)
 {
        int                     i;
 
-       /*
-        * Quick out: if it's not a system relation, it can't be a shared
-        * system relation.
-        */
-       if (!IsSystemRelationName(relname))
-               return FALSE;
-
        i = 0;
        while (SharedSystemRelationNames[i] != NULL)
        {
@@ -132,6 +200,7 @@ IsSharedSystemRelationName(const char *relname)
        return FALSE;
 }
 
+
 /*
  *             newoid                  - returns a unique identifier across all catalogs.
  *
index 1d225cc082bc2e985f45abb9cf3cd9638244048f..eb7487ae62d44923d34de4843fd0a4a83362d3b4 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.195 2002/04/11 19:59:56 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.196 2002/04/12 20:38:18 tgl Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -38,7 +38,6 @@
 #include "catalog/indexing.h"
 #include "catalog/pg_attrdef.h"
 #include "catalog/pg_inherits.h"
-#include "catalog/pg_namespace.h"
 #include "catalog/pg_relcheck.h"
 #include "catalog/pg_statistic.h"
 #include "catalog/pg_type.h"
@@ -224,10 +223,10 @@ heap_create(const char *relname,
         * sanity checks
         */
        if (!allow_system_table_mods &&
-               IsSystemRelationName(relname) &&
+               (IsSystemNamespace(relnamespace) || IsToastNamespace(relnamespace)) &&
                IsNormalProcessingMode())
-               elog(ERROR, "invalid relation name \"%s\"; "
-                        "the 'pg_' name prefix is reserved for system catalogs",
+               elog(ERROR, "invalid relation \"%s\"; "
+                        "system catalog modifications are currently disallowed",
                         relname);
 
        /*
@@ -237,7 +236,7 @@ heap_create(const char *relname,
         * have to take special care for those rels that should be nailed
         * in cache and/or are shared across databases.
         */
-       if (relnamespace == PG_CATALOG_NAMESPACE)
+       if (IsSystemNamespace(relnamespace))
        {
                if (strcmp(TypeRelationName, relname) == 0)
                {
@@ -1193,7 +1192,7 @@ heap_drop_with_catalog(Oid rid,
         * prevent deletion of system relations
         */
        if (!allow_system_table_mods &&
-               IsSystemRelationName(RelationGetRelationName(rel)))
+               IsSystemRelation(rel))
                elog(ERROR, "System relation \"%s\" may not be dropped",
                         RelationGetRelationName(rel));
 
index f8a1e5d4b20ab7c8008f5499cd135747e3ad892c..d563d6541836a1e57505fb31d1b21814b7262172 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.175 2002/03/31 06:26:29 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.176 2002/04/12 20:38:19 tgl Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -33,7 +33,6 @@
 #include "catalog/index.h"
 #include "catalog/indexing.h"
 #include "catalog/pg_index.h"
-#include "catalog/pg_namespace.h"
 #include "catalog/pg_opclass.h"
 #include "catalog/pg_proc.h"
 #include "catalog/pg_type.h"
@@ -320,7 +319,7 @@ ConstructIndexReldesc(Relation indexRelation, Oid amoid)
        indexRelation->rd_rel->relowner = GetUserId();
        indexRelation->rd_rel->relam = amoid;
        indexRelation->rd_rel->relisshared =
-               (RelationGetNamespace(indexRelation) == PG_CATALOG_NAMESPACE) &&
+               IsSystemNamespace(RelationGetNamespace(indexRelation)) &&
                IsSharedSystemRelationName(RelationGetRelationName(indexRelation));
        indexRelation->rd_rel->relkind = RELKIND_INDEX;
        indexRelation->rd_rel->relhasoids = false;
@@ -582,7 +581,7 @@ index_create(Oid heapRelationId,
                elog(ERROR, "must index at least one column");
 
        if (!allow_system_table_mods &&
-               IsSystemRelationName(RelationGetRelationName(heapRelation)) &&
+               IsSystemRelation(heapRelation) &&
                IsNormalProcessingMode())
                elog(ERROR, "User-defined indexes on system catalogs are not supported");
 
@@ -1221,7 +1220,7 @@ setNewRelfilenode(Relation relation)
        Buffer          buffer;
        RelationData workrel;
 
-       Assert(!IsSystemRelationName(NameStr(relation->rd_rel->relname)) || relation->rd_rel->relkind == RELKIND_INDEX);
+       Assert(!IsSystemRelation(relation) || relation->rd_rel->relkind == RELKIND_INDEX);
 
        pg_class = heap_openr(RelationRelationName, RowExclusiveLock);
        /* Fetch and lock the classTuple associated with this relation */
@@ -1912,7 +1911,7 @@ reindex_relation(Oid relid, bool force)
         * ignore the indexes of the target system relation while processing
         * reindex.
         */
-       if (!IsIgnoringSystemIndexes() && IsSystemRelationName(NameStr(rel->rd_rel->relname)))
+       if (!IsIgnoringSystemIndexes() && IsSystemRelation(rel))
                deactivate_needed = true;
 #ifndef ENABLE_REINDEX_NAILED_RELATIONS
 
index 6880dbe19e396e1b92424b79c1c8c54fddb88c42..84bd95e466290d2e79b35df4f0dbdeb1340f8800 100644 (file)
@@ -13,7 +13,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/catalog/namespace.c,v 1.7 2002/04/09 20:35:47 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/catalog/namespace.c,v 1.8 2002/04/12 20:38:19 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -21,6 +21,7 @@
 
 #include "access/heapam.h"
 #include "access/xact.h"
+#include "catalog/catalog.h"
 #include "catalog/catname.h"
 #include "catalog/heap.h"
 #include "catalog/namespace.h"
@@ -391,7 +392,7 @@ FuncnameGetCandidates(List *names, int nargs)
                {
                        /* Consider only procs that are in the search path */
                        if (pathContainsSystemNamespace ||
-                               procform->pronamespace != PG_CATALOG_NAMESPACE)
+                               !IsSystemNamespace(procform->pronamespace))
                        {
                                List       *nsp;
 
index ea778de3360444d2f330ab8c12192825614fc3cd..e36f21273d5231fc4467416513c8147eb50da403 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/analyze.c,v 1.30 2002/04/02 01:03:05 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/analyze.c,v 1.31 2002/04/12 20:38:20 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -18,9 +18,9 @@
 
 #include "access/heapam.h"
 #include "access/tuptoaster.h"
+#include "catalog/catalog.h"
 #include "catalog/catname.h"
 #include "catalog/indexing.h"
-#include "catalog/pg_namespace.h"
 #include "catalog/pg_operator.h"
 #include "catalog/pg_statistic.h"
 #include "catalog/pg_type.h"
@@ -218,7 +218,7 @@ analyze_rel(Oid relid, VacuumStmt *vacstmt)
        /*
         * We can ANALYZE any table except pg_statistic. See update_attstats
         */
-       if (RelationGetNamespace(onerel) == PG_CATALOG_NAMESPACE &&
+       if (IsSystemNamespace(RelationGetNamespace(onerel)) &&
                strcmp(RelationGetRelationName(onerel), StatisticRelationName) == 0)
        {
                relation_close(onerel, AccessShareLock);
index c74d24cf7a5ee453ac67bf948a2411fde691fb05..c13b2aa67d430b8e25cdae83a93586f7a15ec6d0 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.173 2002/04/11 23:20:04 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.174 2002/04/12 20:38:20 tgl Exp $
  *
  * NOTES
  *       The PerformAddAttribute() code, like most of the relation
@@ -346,7 +346,7 @@ AlterTableAddColumn(Oid myrelid,
         * normally, only the owner of a class can change its schema.
         */
        if (!allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+               && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
        if (!pg_class_ownercheck(myrelid, GetUserId()))
@@ -548,7 +548,7 @@ AlterTableAlterColumnDropNotNull(Oid myrelid,
                         RelationGetRelationName(rel));
 
        if (!allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+               && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
 
@@ -699,7 +699,7 @@ AlterTableAlterColumnSetNotNull(Oid myrelid,
                         RelationGetRelationName(rel));
 
        if (!allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+               && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
 
@@ -829,7 +829,7 @@ AlterTableAlterColumnDefault(Oid myrelid,
                         RelationGetRelationName(rel));
 
        if (!allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+               && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
 
@@ -970,8 +970,8 @@ drop_default(Oid relid, int16 attnum)
  */
 void
 AlterTableAlterColumnFlags(Oid myrelid,
-                                                               bool inh, const char *colName,
-                                                               Node *flagValue, const char *flagType)
+                                                  bool inh, const char *colName,
+                                                  Node *flagValue, const char *flagType)
 {
        Relation        rel;
        int                     newtarget = 1;
@@ -989,9 +989,7 @@ AlterTableAlterColumnFlags(Oid myrelid,
        /*
         * we allow statistics case for system tables
         */
-       if (*flagType != 'S' &&
-               !allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+       if (*flagType != 'S' && !allowSystemTableMods && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
 
@@ -1150,7 +1148,7 @@ AlterTableAddConstraint(Oid myrelid,
                         RelationGetRelationName(rel));
 
        if (!allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+               && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
 
@@ -1476,7 +1474,7 @@ AlterTableDropConstraint(Oid myrelid,
                         RelationGetRelationName(rel));
 
        if (!allowSystemTableMods
-               && IsSystemRelationName(RelationGetRelationName(rel)))
+               && IsSystemRelation(rel))
                elog(ERROR, "ALTER TABLE: relation \"%s\" is a system catalog",
                         RelationGetRelationName(rel));
 
@@ -1952,6 +1950,10 @@ CreateSchemaCommand(CreateSchemaStmt *stmt)
                                 owner_name, authId);
        }
 
+       if (!allowSystemTableMods && IsReservedName(schemaName))
+               elog(ERROR, "CREATE SCHEMA: Illegal schema name: \"%s\" -- pg_ is reserved for system schemas",
+                        schemaName);
+
        /* Create the schema's namespace */
        NamespaceCreate(schemaName, owner_userid);
 
index 4a76e0c11ec58d6554b6e349a833ee25f4a62157..6a0cf8114738a4537d01ec0ff7ee8c3cb9221b40 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.95 2002/03/31 06:26:30 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/Attic/creatinh.c,v 1.96 2002/04/12 20:38:22 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -22,7 +22,6 @@
 #include "catalog/indexing.h"
 #include "catalog/namespace.h"
 #include "catalog/pg_inherits.h"
-#include "catalog/pg_namespace.h"
 #include "catalog/pg_type.h"
 #include "commands/creatinh.h"
 #include "miscadmin.h"
@@ -275,7 +274,7 @@ TruncateRelation(const RangeVar *relation)
                elog(ERROR, "TRUNCATE cannot be used on views. '%s' is a view",
                         RelationGetRelationName(rel));
 
-       if (!allowSystemTableMods && IsSystemRelationName(RelationGetRelationName(rel)))
+       if (!allowSystemTableMods && IsSystemRelation(rel))
                elog(ERROR, "TRUNCATE cannot be used on system tables. '%s' is a system table",
                         RelationGetRelationName(rel));
 
index 0a8ddc1807c2fd7b97451c01f48254def3e6ac97..297d5e726633576c1ad5d30ba724986b0536162e 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.69 2002/04/11 19:59:58 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.70 2002/04/12 20:38:22 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -104,13 +104,13 @@ DefineIndex(RangeVar *heapRelation,
 
        relationId = RelationGetRelid(rel);
 
-       heap_close(rel, NoLock);
-
        if (!IsBootstrapProcessingMode() &&
-               IsSystemRelationName(heapRelation->relname) &&
+               IsSystemRelation(rel) &&
                !IndexesAreActive(relationId, false))
                elog(ERROR, "Existing indexes are inactive. REINDEX first");
 
+       heap_close(rel, NoLock);
+
        /*
         * look up the access method, verify it can handle the requested
         * features
@@ -560,6 +560,16 @@ ReindexIndex(RangeVar *indexRelation, bool force /* currently unused */ )
                         indexRelation->relname,
                         ((Form_pg_class) GETSTRUCT(tuple))->relkind);
 
+       if (IsSystemClass((Form_pg_class) GETSTRUCT(tuple)))
+       {
+               if (!allowSystemTableMods)
+                       elog(ERROR, "\"%s\" is a system index. call REINDEX under standalone postgres with -O -P options",
+                                indexRelation->relname);
+               if (!IsIgnoringSystemIndexes())
+                       elog(ERROR, "\"%s\" is a system index. call REINDEX under standalone postgres with -P -O options",
+                                indexRelation->relname);
+       }
+
        ReleaseSysCache(tuple);
 
        if (IsIgnoringSystemIndexes())
@@ -611,10 +621,6 @@ ReindexTable(RangeVar *relation, bool force)
 /*
  * ReindexDatabase
  *             Recreate indexes of a database.
- *
- * Exceptions:
- *             "ERROR" if table nonexistent.
- *             ...
  */
 void
 ReindexDatabase(const char *dbname, bool force, bool all)
@@ -638,6 +644,11 @@ ReindexDatabase(const char *dbname, bool force, bool all)
        if (!(superuser() || is_dbadmin(MyDatabaseId)))
                elog(ERROR, "REINDEX DATABASE: Permission denied.");
 
+       if (!allowSystemTableMods)
+               elog(ERROR, "must be called under standalone postgres with -O -P options");
+       if (!IsIgnoringSystemIndexes())
+               elog(ERROR, "must be called under standalone postgres with -P -O options");
+
        /*
         * We cannot run inside a user transaction block; if we were inside a
         * transaction, then our commit- and start-transaction-command calls
@@ -668,7 +679,7 @@ ReindexDatabase(const char *dbname, bool force, bool all)
        {
                if (!all)
                {
-                       if (!IsSystemRelationName(NameStr(((Form_pg_class) GETSTRUCT(tuple))->relname)))
+                       if (!IsSystemClass((Form_pg_class) GETSTRUCT(tuple)))
                                continue;
                }
                if (((Form_pg_class) GETSTRUCT(tuple))->relkind == RELKIND_RELATION)
index 5760cbe30042278220cbd5ba6ab9fe1fd8673760..21db59b7f6b0102ba443f23279440b11d302fa9d 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/Attic/rename.c,v 1.69 2002/04/05 11:58:24 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/Attic/rename.c,v 1.70 2002/04/12 20:38:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -92,7 +92,7 @@ renameatt(Oid relid,
         * normally, only the owner of a class can change its schema.
         */
        if (!allowSystemTableMods 
-               && IsSystemRelationName(RelationGetRelationName(targetrelation)))
+               && IsSystemRelation(targetrelation))
                elog(ERROR, "renameatt: class \"%s\" is a system catalog",
                         RelationGetRelationName(targetrelation));
        if (!pg_class_ownercheck(relid, GetUserId()))
@@ -276,14 +276,10 @@ renamerel(Oid relid, const char *newrelname)
 
        /* Validity checks */
        if (!allowSystemTableMods &&
-               IsSystemRelationName(RelationGetRelationName(targetrelation)))
+               IsSystemRelation(targetrelation))
                elog(ERROR, "renamerel: system relation \"%s\" may not be renamed",
                         RelationGetRelationName(targetrelation));
 
-       if (!allowSystemTableMods && IsSystemRelationName(newrelname))
-               elog(ERROR, "renamerel: Illegal class name: \"%s\" -- pg_ is reserved for system catalogs",
-                        newrelname);
-
        relkind = targetrelation->rd_rel->relkind;
        relhastriggers = (targetrelation->rd_rel->reltriggers > 0);
 
index 72f13d3db491dd041cface0469dd567463a654ee..891b9f3cfba8fb8759d8daee2b53861d04772c48 100644 (file)
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.112 2002/04/09 20:35:48 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.113 2002/04/12 20:38:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -80,7 +80,7 @@ CreateTrigger(CreateTrigStmt *stmt)
                elog(ERROR, "CreateTrigger: relation \"%s\" is not a table",
                         stmt->relation->relname);
 
-       if (!allowSystemTableMods && IsSystemRelationName(stmt->relation->relname))
+       if (!allowSystemTableMods && IsSystemRelation(rel))
                elog(ERROR, "CreateTrigger: can't create trigger for system relation %s",
                        stmt->relation->relname);
 
@@ -326,7 +326,7 @@ DropTrigger(Oid relid, const char *trigname)
                elog(ERROR, "DropTrigger: relation \"%s\" is not a table",
                         RelationGetRelationName(rel));
 
-       if (!allowSystemTableMods && IsSystemRelationName(RelationGetRelationName(rel)))
+       if (!allowSystemTableMods && IsSystemRelation(rel))
                elog(ERROR, "DropTrigger: can't drop trigger for system relation %s",
                         RelationGetRelationName(rel));
 
index ed3effab65190bc9eacc60e88c4fa517c054a523..20a366d02ab39b1f07d180e103ae68553e8b5f02 100644 (file)
@@ -13,7 +13,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.222 2002/04/02 05:11:55 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.223 2002/04/12 20:38:25 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -806,7 +806,7 @@ full_vacuum_rel(Relation onerel, VacuumStmt *vacstmt)
        bool            reindex = false;
 
        if (IsIgnoringSystemIndexes() &&
-               IsSystemRelationName(RelationGetRelationName(onerel)))
+               IsSystemRelation(onerel))
                reindex = true;
 
        vacuum_set_xid_limits(vacstmt, onerel->rd_rel->relisshared,
index 5b0719487792960068bd816bf28cd616abd0c163..9b03401e4449451bd45e4fb7e731f5c9b7ea401e 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.79 2002/02/19 20:11:13 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/executor/execUtils.c,v 1.80 2002/04/12 20:38:26 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -467,7 +467,7 @@ ExecOpenIndices(ResultRelInfo *resultRelInfo)
        if (!RelationGetForm(resultRelation)->relhasindex)
                return;
        if (IsIgnoringSystemIndexes() &&
-               IsSystemRelationName(RelationGetRelationName(resultRelation)))
+               IsSystemRelation(resultRelation))
                return;
 
        /*
index 447b3e61f2b8b9ccd871edb491bfc3c22c986023..6ae9e1b7e903023d2c459dc8b552d25e28a2ec72 100644 (file)
@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/optimizer/util/plancat.c,v 1.70 2002/02/19 20:11:14 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/optimizer/util/plancat.c,v 1.71 2002/04/12 20:38:26 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -58,8 +58,7 @@ get_relation_info(Oid relationObjectId,
                         relationObjectId);
        relation = (Form_pg_class) GETSTRUCT(relationTuple);
 
-       if (IsIgnoringSystemIndexes() &&
-               IsSystemRelationName(NameStr(relation->relname)))
+       if (IsIgnoringSystemIndexes() && IsSystemClass(relation))
                *hasindex = false;
        else
                *hasindex = relation->relhasindex;
index 7e2be17edeafd308b560b5cd5a4407b53d07c351..77dfe4a23651b9124ea60ce1bfb3673ae81dc3af 100644 (file)
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.147 2002/04/12 09:17:10 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.148 2002/04/12 20:38:27 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -127,7 +127,7 @@ CheckDropPermissions(RangeVar *rel, char rightkind)
                elog(ERROR, "you do not own %s \"%s\"",
                         rentry->name, rel->relname);
 
-       if (!allowSystemTableMods && IsSystemRelationName(rel->relname))
+       if (!allowSystemTableMods && IsSystemClass(classform))
                elog(ERROR, "%s \"%s\" is a system %s",
                         rentry->name, rel->relname, rentry->name);
 
@@ -153,7 +153,8 @@ CheckOwnership(RangeVar *rel, bool noCatalogs)
 
        if (noCatalogs)
        {
-               if (!allowSystemTableMods && IsSystemRelationName(rel->relname))
+               if (!allowSystemTableMods &&
+                       IsSystemClass((Form_pg_class) GETSTRUCT(tuple)))
                        elog(ERROR, "relation \"%s\" is a system catalog",
                                 rel->relname);
        }
@@ -791,15 +792,6 @@ ProcessUtility(Node *parsetree,
                                {
                                        case INDEX:
                                                relname = (char *) stmt->relation->relname;
-                                               if (IsSystemRelationName(relname))
-                                               {
-                                                       if (!allowSystemTableMods)
-                                                               elog(ERROR, "\"%s\" is a system index. call REINDEX under standalone postgres with -O -P options",
-                                                                        relname);
-                                                       if (!IsIgnoringSystemIndexes())
-                                                               elog(ERROR, "\"%s\" is a system index. call REINDEX under standalone postgres with -P -O options",
-                                                                        relname);
-                                               }
                                                CheckOwnership(stmt->relation, false);
                                                ReindexIndex(stmt->relation, stmt->force);
                                                break;
@@ -809,10 +801,6 @@ ProcessUtility(Node *parsetree,
                                                break;
                                        case DATABASE:
                                                relname = (char *) stmt->name;
-                                               if (!allowSystemTableMods)
-                                                       elog(ERROR, "must be called under standalone postgres with -O -P options");
-                                               if (!IsIgnoringSystemIndexes())
-                                                       elog(ERROR, "must be called under standalone postgres with -P -O options");
                                                ReindexDatabase(relname, stmt->force, false);
                                                break;
                                }
index 6d397a7ba98c206d21354f47b4baef6a5213b992..483c06bd6ac201b9de6ac6964b5b40f2345eb5b0 100644 (file)
@@ -74,7 +74,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/cache/inval.c,v 1.49 2002/03/03 17:47:55 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/cache/inval.c,v 1.50 2002/04/12 20:38:28 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -456,12 +456,15 @@ PrepareForTupleInvalidation(Relation relation, HeapTuple tuple,
         * We only need to worry about invalidation for tuples that are in
         * system relations; user-relation tuples are never in catcaches and
         * can't affect the relcache either.
-        *
-        * TOAST tuples can likewise be ignored here.
         */
-       if (!IsSystemRelationName(NameStr(RelationGetForm(relation)->relname)))
+       if (!IsSystemRelation(relation))
                return;
-       if (IsToastRelationName(NameStr(RelationGetForm(relation)->relname)))
+       /* 
+        * TOAST tuples can likewise be ignored here.
+        * Note that TOAST tables are considered system relations
+        * so they are not filtered by the above test.
+        */
+       if (IsToastRelation(relation))
                return;
 
        /*
index fcdffa9132e0c090db97fc420182081c0ecee45e..9a8e76f4926c3fa03df024e495e9e821c63683e2 100644 (file)
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.159 2002/03/31 06:26:31 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.160 2002/04/12 20:38:29 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -183,7 +183,7 @@ do { \
                elog(ERROR, "out of memory for relation descriptor cache"); \
        /* used to give notice if found -- now just keep quiet */ \
        nodentry->reldesc = RELATION; \
-       if (RelationGetNamespace(RELATION) == PG_CATALOG_NAMESPACE) \
+       if (IsSystemNamespace(RelationGetNamespace(RELATION))) \
        { \
                char *relname = RelationGetRelationName(RELATION); \
                RelNameCacheEnt *namehentry; \
@@ -244,7 +244,7 @@ do { \
                                                                                   HASH_REMOVE, NULL); \
        if (nodentry == NULL) \
                elog(WARNING, "trying to delete a reldesc that does not exist."); \
-       if (RelationGetNamespace(RELATION) == PG_CATALOG_NAMESPACE) \
+       if (IsSystemNamespace(RelationGetNamespace(RELATION))) \
        { \
                char *relname = RelationGetRelationName(RELATION); \
                RelNameCacheEnt *namehentry; \
index 62cc5736f7f72bd36fdf6a5e57fd65c2f57b3b28..255bb265c4c64ffcd9b0b02c86281fcdef1711eb 100644 (file)
@@ -7,22 +7,29 @@
  * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: catalog.h,v 1.22 2002/03/22 21:34:44 tgl Exp $
+ * $Id: catalog.h,v 1.23 2002/04/12 20:38:30 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
 #ifndef CATALOG_H
 #define CATALOG_H
 
-#include "access/tupdesc.h"
+#include "utils/rel.h"
 
-#include "storage/relfilenode.h"
 
 extern char *relpath(RelFileNode rnode);
 extern char *GetDatabasePath(Oid tblNode);
 
-extern bool IsSystemRelationName(const char *relname);
-extern bool IsToastRelationName(const char *relname);
+extern bool IsSystemRelation(Relation relation);
+extern bool IsToastRelation(Relation relation);
+
+extern bool IsSystemClass(Form_pg_class reltuple);
+extern bool IsToastClass(Form_pg_class reltuple);
+
+extern bool IsSystemNamespace(Oid namespaceId);
+extern bool IsToastNamespace(Oid namespaceId);
+
+extern bool IsReservedName(const char *name);
 extern bool IsSharedSystemRelationName(const char *relname);
 
 extern Oid     newoid(void);
index cbf0680a42fcc83c16d2b412f8afba118d4524b4..95821b513d25c1cb1f3cbc72f8f0efbc6f605c3c 100644 (file)
@@ -296,6 +296,9 @@ SELECT * FROM foo_seq_new;
 (1 row)
 
 DROP SEQUENCE foo_seq_new;
+-- toast-like relation name
+alter table stud_emp rename to pg_toast_stud_emp;
+alter table pg_toast_stud_emp rename to stud_emp;
 -- FOREIGN KEY CONSTRAINT adding TEST
 CREATE TABLE tmp2 (a int primary key);
 NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index 'tmp2_pkey' for table 'tmp2'
index 56c8939c6f032576f448e0bc0948a949cac00c58..cdd4218d99e065452109584048354588f3adef21 100644 (file)
@@ -66,9 +66,6 @@ ERROR:  Relation "nonesuch" does not exist
 -- no such relation 
 alter table nonesuch rename to stud_emp;
 ERROR:  Relation "nonesuch" does not exist
--- system relation 
-alter table stud_emp rename to pg_stud_emp;
-ERROR:  renamerel: Illegal class name: "pg_stud_emp" -- pg_ is reserved for system catalogs
 -- conflict 
 alter table stud_emp rename to aggtest;
 ERROR:  renamerel: relation "aggtest" exists
index 477f4696b56b906f44b93551ae52dbfa93729fd0..2931e8ea1884f6c7e8c5e3a293955b60a21fe76d 100644 (file)
@@ -178,6 +178,9 @@ CREATE SEQUENCE foo_seq;
 ALTER TABLE foo_seq RENAME TO foo_seq_new;
 SELECT * FROM foo_seq_new;
 DROP SEQUENCE foo_seq_new;
+-- toast-like relation name
+alter table stud_emp rename to pg_toast_stud_emp;
+alter table pg_toast_stud_emp rename to stud_emp;
 
 -- FOREIGN KEY CONSTRAINT adding TEST
 
index 949f6405998f0e02e936444712e4283d4cea8c52..5ab09d2a1239a76f0b5be446b7139fc506002947 100644 (file)
@@ -77,9 +77,6 @@ alter table nonesuch rename to newnonesuch;
 -- no such relation 
 alter table nonesuch rename to stud_emp;
 
--- system relation 
-alter table stud_emp rename to pg_stud_emp;
-
 -- conflict 
 alter table stud_emp rename to aggtest;