From: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
---|---|
To: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
Subject: | inherited primary key misbehavior |
Date: | 2019-01-23 09:34:06 |
Message-ID: | c1c9b688-b886-84f7-4048-1e4ebe9b1d06@lab.ntt.co.jp |
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Lists: | pgsql-hackers |
Hi,
It seems that ATExecDetachPartition misses to mark a child's primary key
constraint entry (if any) as local (conislocal=true, coninhcount=0), which
causes this:
create table p (a int primary key) partition by list (a);
create table p2 partition of p for values in (2);
alter table p detach partition p2;
alter table p2 drop constraint p2_pkey ;
ERROR: cannot drop inherited constraint "p2_pkey" of relation "p2"
select conname, conislocal, coninhcount from pg_constraint where conrelid
= 'p2'::regclass;
conname │ conislocal │ coninhcount
─────────┼────────────┼─────────────
p2_pkey │ f │ 1
(1 row)
How about the attached patch?
Thanks,
Amit
Attachment | Content-Type | Size |
---|---|---|
0001-Detach-primary-key-constraint-when-detaching-partiti.patch | text/plain | 3.7 KB |
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