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Report index name on CLUSTER failure. Also, suggest ALTER TABLE

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WITHOUT CLUSTER for cluster failure of a single table in a full db
cluster.
This commit is contained in:
Bruce Momjian
2005-05-10 13:16:26 +00:00
parent dc5ebcfcce
commit a4dde3bff3
3 changed files with 21 additions and 14 deletions
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26
src/backend/commands/cluster.c
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@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.137 2005/05/06 17:24:53 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.138 2005/05/10 13:16:26 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -292,7 +292,7 @@ cluster_rel(RelToCluster *rvtc, bool recheck)
OldHeap = heap_open(rvtc->tableOid, AccessExclusiveLock);
/* Check index is valid to cluster on */
check_index_is_clusterable(OldHeap, rvtc->indexOid);
check_index_is_clusterable(OldHeap, rvtc->indexOid, recheck);
/* rebuild_relation does all the dirty work */
rebuild_relation(OldHeap, rvtc->indexOid);
@ -309,7 +309,7 @@ cluster_rel(RelToCluster *rvtc, bool recheck)
* definition can't change under us.
*/
void
check_index_is_clusterable(Relation OldHeap, Oid indexOid)
check_index_is_clusterable(Relation OldHeap, Oid indexOid, bool recheck)
{
Relation OldIndex;
@ -336,7 +336,9 @@ check_index_is_clusterable(Relation OldHeap, Oid indexOid)
if (!heap_attisnull(OldIndex->rd_indextuple, Anum_pg_index_indpred))
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot cluster on partial index")));
errmsg("cannot cluster on partial index \"%s\"",
RelationGetRelationName(OldIndex))));
if (!OldIndex->rd_am->amindexnulls)
{
AttrNumber colno;
@ -354,21 +356,25 @@ check_index_is_clusterable(Relation OldHeap, Oid indexOid)
if (!OldHeap->rd_att->attrs[colno - 1]->attnotnull)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot cluster when index access method does not handle null values"),
errhint("You may be able to work around this by marking column \"%s\" NOT NULL.",
NameStr(OldHeap->rd_att->attrs[colno - 1]->attname))));
errmsg("cannot cluster on index \"%s\" because access method\n"
"does not handle null values",
RelationGetRelationName(OldIndex)),
errhint("You may be able to work around this by marking column \"%s\" NOT NULL%s",
NameStr(OldHeap->rd_att->attrs[colno - 1]->attname),
recheck ? ",\nor use ALTER TABLE ... SET WITHOUT CLUSTER to remove the cluster\n"
"specification from the table." : ".")));
}
else if (colno < 0)
{
/* system column --- okay, always non-null */
}
else
{
/* index expression, lose... */
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot cluster on expressional index when index access method does not handle null values")));
}
errmsg("cannot cluster on expressional index \"%s\" because its index access\n"
"method does not handle null values",
RelationGetRelationName(OldIndex))));
}
/*