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Invalidate partitions of table being attached/detached

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Failing to do that, any direct inserts/updates of those partitions
would fail to enforce the correct constraint, that is, one that
considers the new partition constraint of their parent table.

Backpatch to 10.

Reported by: Hou Zhijie <houzj.fnst@fujitsu.com>
Author: Amit Langote <amitlangote09@gmail.com>
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Nitin Jadhav <nitinjadhavpostgres@gmail.com>
Reviewed-by: Pavel Borisov <pashkin.elfe@gmail.com>

Discussion: https://postgr.es/m/OS3PR01MB5718DA1C4609A25186D1FBF194089%40OS3PR01MB5718.jpnprd01.prod.outlook.com
This commit is contained in:
Alvaro Herrera
2021-10-18 19:08:25 -03:00
parent fc0f3b4cb0
commit d6f1e16c8f
3 changed files with 74 additions and 0 deletions
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19
src/test/regress/sql/alter_table.sql
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@@ -2940,3 +2940,22 @@ select indexrelid::regclass, indisclustered from pg_index
where indrelid = 'alttype_cluster'::regclass
order by indexrelid::regclass::text;
drop table alttype_cluster;
--
-- Check that attaching or detaching a partitioned partition correctly leads
-- to its partitions' constraint being updated to reflect the parent's
-- newly added/removed constraint
create table target_parted (a int, b int) partition by list (a);
create table attach_parted (a int, b int) partition by list (b);
create table attach_parted_part1 partition of attach_parted for values in (1);
-- insert a row directly into the leaf partition so that its partition
-- constraint is built and stored in the relcache
insert into attach_parted_part1 values (1, 1);
-- the following better invalidate the partition constraint of the leaf
-- partition too...
alter table target_parted attach partition attach_parted for values in (1);
-- ...such that the following insert fails
insert into attach_parted_part1 values (2, 1);
-- ...and doesn't when the partition is detached along with its own partition
alter table target_parted detach partition attach_parted;
insert into attach_parted_part1 values (2, 1);