From: Rui DeSousa <rui@crazybean.net>
To: Nikhil Ingale <niks.bgm@gmail.com>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: how do I capture conflicting rows
Date: Mon, 15 May 2023 10:53:03 -0400
Message-ID: <6D26434B-74A9-43FF-B593-07DAD0BBFD9E@crazybean.net> (raw)
In-Reply-To: <CALXkTpx3iLuGRx1_4N6GJ85ptoW4n4XSdh3ChJLE-hrFGC982g@mail.gmail.com>
References: <CALXkTpx3iLuGRx1_4N6GJ85ptoW4n4XSdh3ChJLE-hrFGC982g@mail.gmail.com>
> On May 15, 2023, at 1:32 AM, Nikhil Ingale <niks.bgm@gmail.com> wrote:
>
> INSERT INTO test (id,name,age,branch) SELECT * FROM student ON CONFLICT DO NOTHING;
>
> How do I capture the conflicting records to a file while non conflicting records are inserted to the table?
>
You can return the rows inserted and from that you can determine which rows had conflicts by returning the inserted rows.
with x (id, name, age, branch) as (
select id, name, age, branch
from student
), insrt (id) as (
insert into test (id,name,age,branch)
select id, name, age, branch from x
on conflict do nothing
returning id
)
select x.*
from x
left out join insrt on insrt.id = x.id
where insrt.id is null
;=
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To: pgsql-admin@postgresql.org
Cc: rui@crazybean.net, niks.bgm@gmail.com, pgsql-admin@lists.postgresql.org
Subject: Re: how do I capture conflicting rows
In-Reply-To: <6D26434B-74A9-43FF-B593-07DAD0BBFD9E@crazybean.net>
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