Re: insert - on conflict question

On Wed, Feb 1, 2017 at 4:15 PM, Johann Spies <johann(dot)spies(at)gmail(dot)com> wrote:

> How do I formulate the on conflict do update-section of this query? When
> I try set title=q.title, q is unknown. When I try and change 'title' in
> the select-part to something else and try title=ti I get the message that
> ti cannot be used in this part of the query.
>
> INSERT INTO wos_2017_1.article (ut,
> title,
> author_count)WITH p AS (
> SELECT
> ARRAY [ ARRAY [ 't', 'some_namespace' ] ] AS ns),
> q AS (
> SELECT
> ut,
> unnest (xpath ('//t:title[(at)type= "item"]/text()',
> xml,
> p.ns))::text title,
> unnest (xpath ('//t:summary/t:names/@count',
> xml,
> p.ns))::TEXT::INTEGER AS author_count
> FROM
> p,
> source.cover_2016)SELECT
> ut,
> regexp_replace (regexp_replace (regexp_replace (title, '<', '<', 'g'), '&', '&', 'g'), '>', '>', 'g')
> title,
> author_countFROM
> q
>
> ON CONFLICT (ut)
> DO UPDATESET
> title = title,
> author_count = author_count;
>
>
>
In the ON CONFLICT... SET we need to use EXCLUDED keyword.

ON CONFLICT (ut)
DO UPDATE
SET
title = EXCLUDED.title,
author_count = EXCLUDED.author_count;

--
Thank you,

Beena Emerson

Have a Great Day!