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[PATCH v9 6/8] Invalidate parent index cluster on attach
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* [PATCH v9 6/8] Invalidate parent index cluster on attach
@ 2020-11-06 01:11  Justin Pryzby <[email protected]>
  0 siblings, 0 replies; 3+ messages in thread

From: Justin Pryzby @ 2020-11-06 01:11 UTC (permalink / raw)

---
 src/backend/commands/indexcmds.c      | 21 +++++++++++++++++++++
 src/test/regress/expected/cluster.out | 14 ++++++++++++++
 src/test/regress/sql/cluster.sql      |  5 +++++
 3 files changed, 40 insertions(+)

diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 5f8fc2ea16..4485b01b21 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -4126,6 +4126,27 @@ IndexSetParentIndex(Relation partitionIdx, Oid parentOid)
 	/* set relispartition correctly on the partition */
 	update_relispartition(partRelid, OidIsValid(parentOid));
 
+	/*
+	 * If the attached index is not clustered, invalidate cluster mark on
+	 * any parents
+	 */
+	if ((OidIsValid(parentOid) && get_index_isclustered(parentOid)) ||
+			get_index_isclustered(partRelid))
+	{
+		Relation indrel;
+
+		/* Make relispartition visible */
+		CommandCounterIncrement();
+
+		indrel = table_open(IndexGetRelation(partRelid, false),
+				ShareUpdateExclusiveLock);
+		mark_index_clustered(indrel,
+				get_index_isclustered(partRelid) ? partRelid : InvalidOid,
+				true);
+		table_close(indrel, ShareUpdateExclusiveLock);
+
+	}
+
 	if (fix_dependencies)
 	{
 		/*
diff --git a/src/test/regress/expected/cluster.out b/src/test/regress/expected/cluster.out
index 6cba3cc4f9..e7f0889743 100644
--- a/src/test/regress/expected/cluster.out
+++ b/src/test/regress/expected/cluster.out
@@ -567,6 +567,20 @@ Indexes:
     "clstrpart_idx" btree (a)
 Number of partitions: 3 (Use \d+ to list them.)
 
+-- Check that attaching an unclustered index marks the parent unclustered:
+ALTER TABLE clstrpart CLUSTER ON clstrpart_idx;
+CREATE TABLE clstrpart5 (LIKE clstrpart INCLUDING INDEXES);
+ALTER TABLE clstrpart ATTACH PARTITION clstrpart5 FOR VALUES FROM (40)TO(50);
+\d clstrpart
+       Partitioned table "public.clstrpart"
+ Column |  Type   | Collation | Nullable | Default 
+--------+---------+-----------+----------+---------
+ a      | integer |           |          | 
+Partition key: RANGE (a)
+Indexes:
+    "clstrpart_idx" btree (a)
+Number of partitions: 4 (Use \d+ to list them.)
+
 -- Test CLUSTER with external tuplesorting
 create table clstr_4 as select * from tenk1;
 create index cluster_sort on clstr_4 (hundred, thousand, tenthous);
diff --git a/src/test/regress/sql/cluster.sql b/src/test/regress/sql/cluster.sql
index a1d132f288..3c8085c69e 100644
--- a/src/test/regress/sql/cluster.sql
+++ b/src/test/regress/sql/cluster.sql
@@ -239,6 +239,11 @@ CLUSTER clstrpart1 USING clstrpart1_idx_2;
 ALTER TABLE clstrpart CLUSTER ON clstrpart_idx;
 ALTER TABLE clstrpart1 SET WITHOUT CLUSTER;
 \d clstrpart
+-- Check that attaching an unclustered index marks the parent unclustered:
+ALTER TABLE clstrpart CLUSTER ON clstrpart_idx;
+CREATE TABLE clstrpart5 (LIKE clstrpart INCLUDING INDEXES);
+ALTER TABLE clstrpart ATTACH PARTITION clstrpart5 FOR VALUES FROM (40)TO(50);
+\d clstrpart
 
 -- Test CLUSTER with external tuplesorting
 
-- 
2.17.0


--fmvA4kSBHQVZhkR6
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
 filename="v9-0007-Preserve-indisclustered-on-children-of-clustered-.patch"



^ permalink  raw  reply  [nested|flat] 3+ messages in thread

* Re: More weird compiler warnings
@ 2023-03-16 18:31  Tom Lane <[email protected]>
  0 siblings, 1 reply; 3+ messages in thread

From: Tom Lane @ 2023-03-16 18:31 UTC (permalink / raw)
  To: Andres Freund <[email protected]>; +Cc: [email protected]

Andres Freund <[email protected]> writes:
> On 2022-03-26 13:55:49 -0700, Andres Freund wrote:
>> On 2022-03-26 16:23:26 -0400, Tom Lane wrote:
>>> but I'm wondering if we could silence the warning by changing the loop condition to
>>> while (--nb >= 0)
>>> which seems like it might be marginally more readable anyway.

>> Yes, that looks like it silences it.  I modified the small reproducer I had in
>> that bug (https://godbolt.org/z/ejK9h6von) and the warning vanishes.

> The recent discussion about warnings reminded me of this. Given the gcc bug
> hasn't been fixed, I think we should make that change. I'd vote for
> backpatching it as well - what do you think?

+1, can't hurt anything AFAICS.

			regards, tom lane






^ permalink  raw  reply  [nested|flat] 3+ messages in thread

* Re: More weird compiler warnings
@ 2023-03-16 21:53  Andres Freund <[email protected]>
  parent: Tom Lane <[email protected]>
  0 siblings, 0 replies; 3+ messages in thread

From: Andres Freund @ 2023-03-16 21:53 UTC (permalink / raw)
  To: Tom Lane <[email protected]>; +Cc: [email protected]

On 2023-03-16 14:31:37 -0400, Tom Lane wrote:
> Andres Freund <[email protected]> writes:
> > On 2022-03-26 13:55:49 -0700, Andres Freund wrote:
> >> On 2022-03-26 16:23:26 -0400, Tom Lane wrote:
> >>> but I'm wondering if we could silence the warning by changing the loop condition to
> >>> while (--nb >= 0)
> >>> which seems like it might be marginally more readable anyway.
> 
> >> Yes, that looks like it silences it.  I modified the small reproducer I had in
> >> that bug (https://godbolt.org/z/ejK9h6von) and the warning vanishes.
> 
> > The recent discussion about warnings reminded me of this. Given the gcc bug
> > hasn't been fixed, I think we should make that change. I'd vote for
> > backpatching it as well - what do you think?
> 
> +1, can't hurt anything AFAICS.

Done.






^ permalink  raw  reply  [nested|flat] 3+ messages in thread


end of thread, other threads:[~2023-03-16 21:53 UTC | newest]

Thread overview: 3+ messages (download: mbox mbox.gz follow: Atom feed)
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2020-11-06 01:11 [PATCH v9 6/8] Invalidate parent index cluster on attach Justin Pryzby <[email protected]>
2023-03-16 18:31 Re: More weird compiler warnings Tom Lane <[email protected]>
2023-03-16 21:53 ` Re: More weird compiler warnings Andres Freund <[email protected]>

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