Re: FW: reset all sequences

[Thusitha Kodikara <kthusi@xxxxxxxxx>]

Hi,

You could generate a common script to reset all the sequence using:

select 'alter sequence '||relname||' restart with 1 ;' from pg_class where relkind='S' ;

Then execute the output of that script to restart all the sequences from 1. Does that solve your problem?

Regards,
-Thusitha

Pascal Tufenkji <ptufenkji@xxxxxxxxxx> wrote:

Hi

How can I reset the sequence to ?1?

If I use the following statement

Select setval('mytable_id_seq',1);

I put the last value as 1

So when I insert a new row the value will be ?2? and not ?1? as it should be

I cannot put Select setval('mytable_id_seq',0);

 

What should I do ??!!

 

Thx

Pascal

 

 

-----Original Message-----
From: pgsql-admin-owner@xxxxxxxxxxxxxx [mailto:pgsql-admin-owner@xxxxxxxxxxxxxx] On Behalf Of Sriram Dandapani
Sent: Monday, May 08, 2006 11:54 PM
To: Bruno Wolff III
Cc: pgsql-admin@xxxxxxxxxxxxxx
Subject: Re: [ADMIN] reset all sequences

 

Thanks..that really helped!!

 

-----Original Message-----

From: Bruno Wolff III [mailto:bruno@xxxxxxxx]

Sent: Thursday, May 04, 2006 7:44 PM

To: Sriram Dandapani

Cc: pgsql-admin@xxxxxxxxxxxxxx

Subject: Re: reset all sequences

 

On Thu, May 04, 2006 at 14:20:39 -0700,

  Sriram Dandapani <sdandapani@xxxxxxxxxxxxxxx> wrote:

> Hi

>

> 

>

> I have a scenario where I need to reset all sequences(about 400). Is

> there a system table that I can query to get a list of sequences

> (Postgres 8.1.x)

 

You can do something like:

select * from pg_class where relkind = 'S';

The relname column will give you the sequence name.

 

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