From: Kyle Bateman <kyle@actarg.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-sql@postgresql.org
Subject: Re: unplanned sub-select error?
Date: Tue, 22 Nov 2005 13:24:59 -0700
Message-ID: <43837E9B.20306@actarg.com> (raw)
In-Reply-To: <6603.1132621854@sss.pgh.pa.us>
References: <43826850.1020302@actarg.com>
<6603.1132621854@sss.pgh.pa.us>
Tom Lane wrote:
>Kyle Bateman <kyle@actarg.com> writes:
>
>
>>I have a query:
>>insert into mtr_reg_v_wt (ropnum, inum, pnum, rquant, value, status,
>>ddate, fr_proj, to_proj) values (28985,1,1014,1,(select cost from
>>prd_part where pnum = 1014),'work','2005-Nov-15',50,75);
>>
>>
>
>
>
>>That used to work fine under 7.1.3 but now gives the error:
>>
>>
>
>
>
>>ERROR: cannot handle unplanned sub-select
>>
>>
>
>You need to offer a little more context, like what PG version you are
>using now and what is the underlying DDL --- I suspect some rules or
>views are involved here, but you didn't show them to us.
>
>
>
Sorry, you're right. I have now confirmed that this only happens when
updating via a view/rule (as you suspected). Attached is a minimalist
sql file that demonstrates the same error message from a blank
database. I'm using 8.1.0. I'm pretty sure this problem did not exist
on 8.0.3.
Kyle
Attachments:testmtr.sql (text/x-sql, 744B) download
-- Expose the "unplanned sub-select" error message
create table parts (
partnum varchar(18) primary key,
cost float8
);
create table shipped (
ttype char(2),
ordnum int4,
partnum varchar(18) references parts,
value float8,
primary key (ttype, ordnum)
);
create view shipped_view as
select * from shipped where ttype = 'wt';
create rule shipped_view_insert as on insert to shipped_view
do instead insert into shipped
(ttype, ordnum, partnum, value)
values
('wt', new.ordnum, new.partnum, new.value);
insert into parts (partnum, cost) values (1, 1234.56);
insert into shipped_view
(ordnum, partnum, value)
values
(100,1,(select cost from parts where partnum = 1));
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To: pgsql-sql@postgresql.org
Cc: kyle@actarg.com, tgl@sss.pgh.pa.us
Subject: Re: unplanned sub-select error?
In-Reply-To: <43837E9B.20306@actarg.com>
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