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Thread: Creating a TABLESPACE

Creating a TABLESPACE

From
Amn Ojee Uw
Date:

Hello children!

I am learning how to create a tablespace, and AFAIK this are the steps to follow.

First step is to create the directory where the database files will be created, for that I am using the root directory '/database'. This directory is be owned by the postgres group.

Example :
sudo mkdir /database
sudo chown postgres:postgres /database

I read the following documentation
1.) TABLESPACE

2.) seq_page_cost

3.) effective_io_concurrency

4.) maintenance_io_concurrency

5.) Tablespaces

x.) effective_io_concurrency

I then login PostgreSQL as so : sudo -u postgres psql.

Note : jamiil is an actual account, it does exist!

I proceed to create the 'TABLESPACE' using the default values in PostgreSQL

CREATE TABLESPACE jme_tablespace OWNER jamiil LOCATION '/database' WITH tablespace_option = seq_page_cost(1.0), random_page_cost (4.0), effective_io_concurrency (1), maintenance_io_concurrency (10);

But then I get this error message:
ERROR:  syntax error at or near "tablespace_option"
LINE 1: ...tablespace OWNER jamiil LOCATION '/database' WITH tablespace...

What did I go wrong?

This exercise is not imperative, but as a student of PostgreSQL I'd like to try all there is to learn about PostgreSQL.

Thanks in advance for your time and interest.

Re: Creating a TABLESPACE

From
Mateusz Henicz
Date:
Hey,
You are using "WITH tablespace_option" wrong.

Try it like this:

postgres=# CREATE TABLESPACE jme_tablespace OWNER jamiil LOCATION '/database' WITH (seq_page_cost=1.0,random_page_cost=4.0,effective_io_concurrency=1);
CREATE TABLESPACE

Cheers,
Mateusz

śr., 16 sie 2023 o 12:10 Amn Ojee Uw <amnojeeuw@gmail.com> napisał(a):

Hello children!

I am learning how to create a tablespace, and AFAIK this are the steps to follow.

First step is to create the directory where the database files will be created, for that I am using the root directory '/database'. This directory is be owned by the postgres group.

Example :
sudo mkdir /database
sudo chown postgres:postgres /database

I read the following documentation
1.) TABLESPACE

2.) seq_page_cost

3.) effective_io_concurrency

4.) maintenance_io_concurrency

5.) Tablespaces

x.) effective_io_concurrency

I then login PostgreSQL as so : sudo -u postgres psql.

Note : jamiil is an actual account, it does exist!

I proceed to create the 'TABLESPACE' using the default values in PostgreSQL

CREATE TABLESPACE jme_tablespace OWNER jamiil LOCATION '/database' WITH tablespace_option = seq_page_cost(1.0), random_page_cost (4.0), effective_io_concurrency (1), maintenance_io_concurrency (10);

But then I get this error message:
ERROR:  syntax error at or near "tablespace_option"
LINE 1: ...tablespace OWNER jamiil LOCATION '/database' WITH tablespace...

What did I go wrong?

This exercise is not imperative, but as a student of PostgreSQL I'd like to try all there is to learn about PostgreSQL.

Thanks in advance for your time and interest.

Re: Creating a TABLESPACE

From
Ron
Date:
Friendly tip: whatever else you do, don't write "Hello children!" in English to adults.  It's highly insulting.

On 8/16/23 05:10, Amn Ojee Uw wrote:

Hello children!


--
Born in Arizona, moved to Babylonia.

Re: Creating a TABLESPACE

From
Amn Ojee Uw
Date:

Yes!
Thank you Mateusz.
 

On 8/16/23 6:43 a.m., Mateusz Henicz wrote:
Hey,
You are using "WITH tablespace_option" wrong.

Try it like this:

postgres=# CREATE TABLESPACE jme_tablespace OWNER jamiil LOCATION '/database' WITH (seq_page_cost=1.0,random_page_cost=4.0,effective_io_concurrency=1);
CREATE TABLESPACE

Cheers,
Mateusz

śr., 16 sie 2023 o 12:10 Amn Ojee Uw <amnojeeuw@gmail.com> napisał(a):

Hello children!

I am learning how to create a tablespace, and AFAIK this are the steps to follow.

First step is to create the directory where the database files will be created, for that I am using the root directory '/database'. This directory is be owned by the postgres group.

Example :
sudo mkdir /database
sudo chown postgres:postgres /database

I read the following documentation
1.) TABLESPACE

2.) seq_page_cost

3.) effective_io_concurrency

4.) maintenance_io_concurrency

5.) Tablespaces

x.) effective_io_concurrency

I then login PostgreSQL as so : sudo -u postgres psql.

Note : jamiil is an actual account, it does exist!

I proceed to create the 'TABLESPACE' using the default values in PostgreSQL

CREATE TABLESPACE jme_tablespace OWNER jamiil LOCATION '/database' WITH tablespace_option = seq_page_cost(1.0), random_page_cost (4.0), effective_io_concurrency (1), maintenance_io_concurrency (10);

But then I get this error message:
ERROR:  syntax error at or near "tablespace_option"
LINE 1: ...tablespace OWNER jamiil LOCATION '/database' WITH tablespace...

What did I go wrong?

This exercise is not imperative, but as a student of PostgreSQL I'd like to try all there is to learn about PostgreSQL.

Thanks in advance for your time and interest.

Re: Creating a TABLESPACE

From
Amn Ojee Uw
Date:

Sorry, did not mean it that way.
Thanks for the advice.

On 8/16/23 11:37 a.m., Ron wrote:
Friendly tip: whatever else you do, don't write "Hello children!" in English to adults.  It's highly insulting.

On 8/16/23 05:10, Amn Ojee Uw wrote:

Hello children!


--
Born in Arizona, moved to Babylonia.

Re: Creating a TABLESPACE

From
Ron
Date:
Speakers of English as a second language are to be tolerated and assisted, not mocked and insulted.

On 8/16/23 12:27, Amn Ojee Uw wrote:

Sorry, did not mean it that way.
Thanks for the advice.

On 8/16/23 11:37 a.m., Ron wrote:
Friendly tip: whatever else you do, don't write "Hello children!" in English to adults.  It's highly insulting.

On 8/16/23 05:10, Amn Ojee Uw wrote:

Hello children!


--
Born in Arizona, moved to Babylonia.

--
Born in Arizona, moved to Babylonia.

Re: Creating a TABLESPACE

From
Ray O'Donnell
Date:
On 16/08/2023 21:24, Ron wrote:
> Speakers of English as a second language are to be tolerated and 
> assisted, not mocked and insulted.

+1

I actually found it rather amusing. :-)

Ray.


> 
> On 8/16/23 12:27, Amn Ojee Uw wrote:
>>
>> Sorry, did not mean it that way.
>> Thanks for the advice.
>>
>> On 8/16/23 11:37 a.m., Ron wrote:
>>> Friendly tip: whatever else you do, don't write "Hello children!" in 
>>> English to adults.  It's *highly insulting*.
>>>
>>> On 8/16/23 05:10, Amn Ojee Uw wrote:
>>>>
>>>> Hello children!
>>>>
>>>
>>> -- 
>>> Born in Arizona, moved to Babylonia.
> 
> -- 
> Born in Arizona, moved to Babylonia.

-- 
Raymond O'Donnell // Galway // Ireland
ray@rodonnell.ie