*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.214 2003/08/04 02:39:58 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.215 2003/09/19 19:57:42 tgl Exp $
*
*
* INTERFACE ROUTINES
Oid *classOids,
bool primary);
static Oid IndexGetRelation(Oid indexId);
-static bool activate_index(Oid indexId, bool activate, bool inplace);
static bool reindexing = false;
return result;
}
-/* ---------------------------------
- * activate_index -- activate/deactivate the specified index.
- * Note that currently PostgreSQL doesn't hold the
- * status per index
- * ---------------------------------
- */
-static bool
-activate_index(Oid indexId, bool activate, bool inplace)
-{
- if (!activate) /* Currently does nothing */
- return true;
- return reindex_index(indexId, false, inplace);
-}
-
-/* --------------------------------
+/*
* reindex_index - This routine is used to recreate an index
- * --------------------------------
*/
bool
reindex_index(Oid indexId, bool force, bool inplace)
* the relcache can't cope with changing its relfilenode.
*
* In either of these cases, we are definitely processing a system index,
- * so we'd better be ignoring system indexes.
+ * so we'd better be ignoring system indexes. (These checks are just
+ * for paranoia's sake --- upstream code should have disallowed reindex
+ * in such cases already.)
*/
if (iRel->rd_rel->relisshared)
{
if (!IsIgnoringSystemIndexes())
- ereport(ERROR,
- (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
- errmsg("the target relation %u is shared", indexId)));
+ elog(ERROR,
+ "must be ignoring system indexes to reindex shared index %u",
+ indexId);
inplace = true;
}
if (iRel->rd_isnailed)
{
if (!IsIgnoringSystemIndexes())
- ereport(ERROR,
- (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
- errmsg("the target relation %u is nailed", indexId)));
+ elog(ERROR,
+ "must be ignoring system indexes to reindex nailed index %u",
+ indexId);
inplace = true;
}
return true;
}
+#ifdef NOT_USED
/*
- * ----------------------------
* activate_indexes_of_a_table
* activate/deactivate indexes of the specified table.
*
* Caller must already hold exclusive lock on the table.
- * ----------------------------
*/
bool
activate_indexes_of_a_table(Relation heaprel, bool activate)
}
return true;
}
+#endif /* NOT_USED */
-/* --------------------------------
- * reindex_relation - This routine is used to recreate indexes
+/*
+ * reindex_relation - This routine is used to recreate all indexes
* of a relation.
- * --------------------------------
*/
bool
reindex_relation(Oid relid, bool force)
HeapTuple indexTuple;
bool old,
reindexed;
- bool deactivate_needed,
- overwrite;
+ bool overwrite;
Relation rel;
- overwrite = deactivate_needed = false;
+ overwrite = false;
/*
* Ensure to hold an exclusive lock throughout the transaction. The
rel = heap_open(relid, AccessExclusiveLock);
/*
- * ignore the indexes of the target system relation while processing
- * reindex.
+ * Should be ignoring system indexes if we are reindexing a system table.
+ * (This is elog not ereport because caller should have caught it.)
*/
if (!IsIgnoringSystemIndexes() &&
IsSystemRelation(rel) && !IsToastRelation(rel))
- deactivate_needed = true;
+ elog(ERROR,
+ "must be ignoring system indexes to reindex system table %u",
+ relid);
/*
* Shared system indexes must be overwritten because it's impossible
*/
if (rel->rd_rel->relisshared)
{
- if (IsIgnoringSystemIndexes())
- {
- overwrite = true;
- deactivate_needed = true;
- }
- else
- ereport(ERROR,
- (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
- errmsg("the target relation %u is shared", relid)));
+ if (!IsIgnoringSystemIndexes()) /* shouldn't happen */
+ elog(ERROR,
+ "must be ignoring system indexes to reindex shared table %u",
+ relid);
+ overwrite = true;
}
old = SetReindexProcessing(true);
- if (deactivate_needed)
- {
- if (IndexesAreActive(rel))
- {
- if (!force)
- {
- SetReindexProcessing(old);
- heap_close(rel, NoLock);
- return false;
- }
- activate_indexes_of_a_table(rel, false);
- CommandCounterIncrement();
- }
- }
-
/*
* Continue to hold the lock.
*/
heap_close(rel, NoLock);
+ /*
+ * Find table's indexes by looking in pg_index (not trusting indexes...)
+ */
indexRelation = heap_openr(IndexRelationName, AccessShareLock);
- ScanKeyEntryInitialize(&entry, 0, Anum_pg_index_indrelid,
- F_OIDEQ, ObjectIdGetDatum(relid));
+ ScanKeyEntryInitialize(&entry, 0,
+ Anum_pg_index_indrelid,
+ F_OIDEQ,
+ ObjectIdGetDatum(relid));
scan = heap_beginscan(indexRelation, SnapshotNow, 1, &entry);
reindexed = false;
while ((indexTuple = heap_getnext(scan, ForwardScanDirection)) != NULL)
{
Form_pg_index index = (Form_pg_index) GETSTRUCT(indexTuple);
- if (activate_index(index->indexrelid, true, overwrite))
+ if (reindex_index(index->indexrelid, false, overwrite))
reindexed = true;
else
{
}
heap_endscan(scan);
heap_close(indexRelation, AccessShareLock);
- if (reindexed)
- {
- /*
- * Ok,we could use the reindexed indexes of the target system
- * relation now.
- */
- if (deactivate_needed)
- {
- if (!overwrite && relid == RelOid_pg_class)
- {
- /*
- * For pg_class, relhasindex should be set to true here in
- * place.
- */
- setRelhasindex(relid, true, false, InvalidOid);
- CommandCounterIncrement();
- /*
- * However the following setRelhasindex() is needed to
- * keep consistency with WAL.
- */
- }
- setRelhasindex(relid, true, false, InvalidOid);
- }
- }
SetReindexProcessing(old);
return reindexed;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.106 2003/08/17 19:58:04 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.107 2003/09/19 19:57:42 tgl Exp $
*
*-------------------------------------------------------------------------
*/
ReindexTable(RangeVar *relation, bool force)
{
Oid heapOid;
- char relkind;
+ HeapTuple tuple;
heapOid = RangeVarGetRelid(relation, false);
- relkind = get_rel_relkind(heapOid);
+ tuple = SearchSysCache(RELOID,
+ ObjectIdGetDatum(heapOid),
+ 0, 0, 0);
+ if (!HeapTupleIsValid(tuple)) /* shouldn't happen */
+ elog(ERROR, "cache lookup failed for relation %u", heapOid);
- if (relkind != RELKIND_RELATION && relkind != RELKIND_TOASTVALUE)
+ if (((Form_pg_class) GETSTRUCT(tuple))->relkind != RELKIND_RELATION &&
+ ((Form_pg_class) GETSTRUCT(tuple))->relkind != RELKIND_TOASTVALUE)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("relation \"%s\" is not a table",
relation->relname)));
+ if (IsSystemClass((Form_pg_class) GETSTRUCT(tuple)) &&
+ !IsToastClass((Form_pg_class) GETSTRUCT(tuple)))
+ {
+ if (!allowSystemTableMods)
+ ereport(ERROR,
+ (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
+ errmsg("permission denied: \"%s\" is a system table",
+ relation->relname),
+ errhint("Do REINDEX in standalone postgres with -O -P options.")));
+ if (!IsIgnoringSystemIndexes())
+ ereport(ERROR,
+ (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
+ errmsg("permission denied: \"%s\" is a system table",
+ relation->relname),
+ errhint("Do REINDEX in standalone postgres with -P -O options.")));
+ }
+
+ ReleaseSysCache(tuple);
+
/*
* In-place REINDEX within a transaction block is dangerous, because
* if the transaction is later rolled back we have no way to undo
projects / postgresql.git / commitdiff