pg.ddx.io  pgsql-admin@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: CN <cnliou9@fastmail.fm>
To: pgsql-admin@postgresql.org
Subject: feature request: pg_restore renaming target schema
Date: Thu, 17 Dec 2015 15:44:05 +0800
Message-ID: <1450338245.2626908.469822713.6C14EE8F@webmail.messagingengine.com> (raw)
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-admin>

Hi!

I need to restore one source schema to multiple target schema currently.
For example,

source database: db1
source schema: s1
target database: db2

The existing approach I know is following these steps:

(1) pg_dump -n s1 -Fc -f source.db db1
(2a) pg_restore -d db2 -n s1 source.db
(2b) psql -c "ALTER SCHEMA s1 RENAME TO t1" db2
(3a) pg_restore -d db2 -n s1 source.db
(3b) psql -c "ALTER SCHEMA s1 RENAME TO t2" db2

So far so good.
However, with existing tool I know, obviously step groups (2) and (3)
can only run sequentially.

If pg_restore allows "redirecting" source schema to target schema, then
I can concurrently issue some imaginary commands like these:

pg_restore -d db2 -n s1 --target-schema=t1 source.db
pg_restore -d db2 -n s1 --target-schema=t2 source.db
pg_restore -d db2 -n s1 --target-schema=t3 source.db

Best Regards,
CN

-- 
http://www.fastmail.com - Faster than the air-speed velocity of an
                          unladen european swallow



-- 
Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-admin



view thread (6+ messages)  latest in thread

Message-ID: <1450338245.2626908.469822713.6C14EE8F@webmail.messagingengine.com>
Permalink:  ../1450338245.2626908.469822713.6C14EE8F@webmail.messagingengine.com/
Also on:    postgresql.org/message-id/1450338245.2626908.469822713.6C14EE8F@webmail.messagingengine.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-admin@postgresql.org
  Cc: cnliou9@fastmail.fm
  Subject: Re: feature request: pg_restore renaming target schema
  In-Reply-To: <1450338245.2626908.469822713.6C14EE8F@webmail.messagingengine.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox