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Rename a database that has connections

From: Mark Kirkwood <mark(dot)kirkwood(at)catalyst(dot)net(dot)nz>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Rename a database that has connections
Date: 2011-11-22 03:13:13
Message-ID: 4ECB1349.30603@catalyst.net.nz (view raw or flat)
Thread:
Lists: pgsql-hackers
I've been helping out several customers recently who all seem to be 
wrestling with the same issue: wanting to update/refresh non-production 
databases from the latest corresponding prod version. Typically they 
have (fairly complex) scripts that at some point attempt to restore a 
dump into new database and then rename the to-be-retired db out of the 
way and rename the newly restored one to take over.

In many cases such scripts would be simplified if a database could be 
renamed without requiring its connections terminated. I've been asked 
several times if this could be added... so I've caved in a done a patch 
that allows this.

The default behavior is unchanged - it is required to specify an 
additional trailing FORCE keyword to elicit the more brutal behavior. 
Note that existing connections to the renamed database are unaffected, 
but obviously SELECT current_database() returns the new name (in the 
next transaction).

regards

Mark



Attachment: rename-force.patch.1
Description: text/plain (7.2 KB)

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