Обсуждение: refreshing a database with pg_dump and psql

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refreshing a database with pg_dump and psql

От
"Rossi, Maria"
Дата:

Hi,

 

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

Thanks.

 

 

Maria A Rossi

Database Administration

PGDS (US)

email: maria.rossi@us.pgds.com
cell phone: 517.256.4392

work phone: 517.367.3099
work phone extension: 23099

 

Re: refreshing a database with pg_dump and psql

От
Jan Lentfer
Дата:




Am 26.05.2015 um 23:09 schrieb Rossi, Maria <maria.rossi@us.pgds.com>:

Hi,

 

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

Thanks.

 

Check the pg_restore manual. There is a "clean" option when using the custom format. I think this is what you are looking for.

Regards

Jan

Re: refreshing a database with pg_dump and psql

От
"Rossi, Maria"
Дата:

Sorry,   I mean to say, reload  the database.  Does that makes sense?

 

Maria A Rossi

Database Administration

PGDS (US)

email: maria.rossi@us.pgds.com
cell phone: 517.256.4392

work phone: 517.367.3099
work phone extension: 23099

 

From: David G. Johnston [mailto:david.g.johnston@gmail.com]
Sent: Tuesday, May 26, 2015 5:26 PM
To: Rossi, Maria
Cc: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] refreshing a database with pg_dump and psql

 

On Tuesday, May 26, 2015, Rossi, Maria <maria.rossi@us.pgds.com> wrote:

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

You should probably expound on what you mean by "refresh".

 

David J.

Re: refreshing a database with pg_dump and psql

От
"David G. Johnston"
Дата:
On Tue, May 26, 2015 at 2:27 PM, Jan Lentfer <Jan.Lentfer@web.de> wrote:

Am 26.05.2015 um 23:09 schrieb Rossi, Maria <maria.rossi@us.pgds.com>:

Hi,

 

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

Thanks.

 

Check the pg_restore manual. There is a "clean" option when using the custom format. I think this is what you are looking for.


​Or just inject a "DROP DATABASE ..." into the equation somewhere.

David J.​
 

Re: refreshing a database with pg_dump and psql

От
Jan Lentfer
Дата:


Am 26.05.2015 um 23:36 schrieb David G. Johnston <david.g.johnston@gmail.com>:

On Tue, May 26, 2015 at 2:27 PM, Jan Lentfer <Jan.Lentfer@web.de> wrote:

Am 26.05.2015 um 23:09 schrieb Rossi, Maria <maria.rossi@us.pgds.com>:

Hi,

 

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

Thanks.

 

Check the pg_restore manual. There is a "clean" option when using the custom format. I think this is what you are looking for.


​Or just inject a "DROP DATABASE ..." into the equation somewhere.

pg_restore -cC will do that, too.

Jan

Re: refreshing a database with pg_dump and psql

От
"David G. Johnston"
Дата:
On Tuesday, May 26, 2015, Rossi, Maria <maria.rossi@us.pgds.com> wrote:

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

You should probably expound on what you mean by "refresh".

David J.

Re: refreshing a database with pg_dump and psql

От
Wei Shan
Дата:

I think he meant to keep a development database  in sync with the production database.

On 27 May 2015 7:36 am, "David G. Johnston" <david.g.johnston@gmail.com> wrote:
On Tuesday, May 26, 2015, Rossi, Maria <maria.rossi@us.pgds.com> wrote:

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

You should probably expound on what you mean by "refresh".

David J.

Re: refreshing a database with pg_dump and psql

От
"Rossi, Maria"
Дата:

I will try the pg_restore –cC or drop the database first.

Thank you all for the quick response.

 

Maria A Rossi

Database Administration

PGDS (US)

email: maria.rossi@us.pgds.com
cell phone: 517.256.4392

work phone: 517.367.3099
work phone extension: 23099

 

From: Jan Lentfer [mailto:Jan.Lentfer@web.de]
Sent: Tuesday, May 26, 2015 5:41 PM
To: David G. Johnston
Cc: Rossi, Maria; pgsql-admin@postgresql.org
Subject: Re: [ADMIN] refreshing a database with pg_dump and psql

 

 


Am 26.05.2015 um 23:36 schrieb David G. Johnston <david.g.johnston@gmail.com>:

On Tue, May 26, 2015 at 2:27 PM, Jan Lentfer <Jan.Lentfer@web.de> wrote:

 

Am 26.05.2015 um 23:09 schrieb Rossi, Maria <maria.rossi@us.pgds.com>:

Hi,

 

I have a database that was created from a ‘pg_dump –C’.  No problems there.  Then  I ran the pg_dump  again, this time without the –C. and tried to load it.   But   got a bunch of ‘object already exist’.   

Can’t I refresh an existing database from a plain pg_dump?  Is  there an option that I have to use?

Thanks.

 

Check the pg_restore manual. There is a "clean" option when using the custom format. I think this is what you are looking for.

 

 

​Or just inject a "DROP DATABASE ..." into the equation somewhere.

 

pg_restore -cC will do that, too.

 

Jan