From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: mjf@pearson.co.uk
To: pgsql-docs@lists.postgresql.org
Subject: Re: Update to equivalent SQL in 8.1.4. Serial Types
Date: Mon, 8 Apr 2019 22:09:07 +0200
Message-ID: <893e471c-967d-7f00-44db-7887753ccc53@2ndquadrant.com> (raw)
In-Reply-To: <155066682428.1372.11257078279583524116@wrigleys.postgresql.org>
References: <155066682428.1372.11257078279583524116@wrigleys.postgresql.org>
On 2019-02-20 13:47, PG Doc comments form wrote:
> CREATE TABLE tablename (
> colname SERIAL
> );
>
> is equivalent to
>
> CREATE SEQUENCE tablename_colname_seq;
> CREATE TABLE tablename (
> colname integer NOT NULL DEFAULT nextval('tablename_colname_seq')
> );
> ALTER SEQUENCE tablename_colname_seq OWNED BY tablename.colname;
>
> Since Postgres 10, the datatype of the automatically-created sequence
> matches the datatype of the serial column. But the default type for
> CREATE SEQUENCE remains as bigint. So the second block should start with
> the line
>
> CREATE SEQUENCE tablename_colname_seq AS INTEGER;
fixed
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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To: pgsql-docs@postgresql.org
Cc: peter.eisentraut@2ndquadrant.com, mjf@pearson.co.uk, pgsql-docs@lists.postgresql.org
Subject: Re: Update to equivalent SQL in 8.1.4. Serial Types
In-Reply-To: <893e471c-967d-7f00-44db-7887753ccc53@2ndquadrant.com>
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