Re: checking if sequence exists - Mailing list pgsql-admin

From Thara Vadakkeveedu
Subject Re: checking if sequence exists
Date
Msg-id 1384544163.79352.YahooMailNeo@web125002.mail.ne1.yahoo.com
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In response to Re: checking if sequence exists  (Thara Vadakkeveedu <tharagv@yahoo.com>)
Responses Re: checking if sequence exists  (Kevin Grittner <kgrittn@ymail.com>)
List pgsql-admin
I tried this from pg_admin, but I get a syntax error (unexpected character)
 
IF EXISTS (SELECT 0 FROM pg_class
             WHERE relkind = 'S'
               AND oid::regclass::text = 'public.' || quote_ident('hibernate_sequence'))
  THEN
    RAISE EXCEPTION 'sequence public.% already exists!', 'hibernate_sequence
ENF IF;
 
Thanks.
From: Thara Vadakkeveedu <tharagv@yahoo.com>
To: "pgsql-admin@postgresql.org" <pgsql-admin@postgresql.org>
Sent: Friday, November 15, 2013 2:30 PM
Subject: Re: [ADMIN] checking if sequence exists

How can we find out if a particular sequence exists ? The idea is to check if sequence first and if it does not exist then create it...the goal is to do this when we deploy the application war...
thanks
tg

 


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