Re: Creating a TABLESPACE

[Mateusz Henicz <mateuszhenicz@xxxxxxxxx>]

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@xxxxxxxxx> 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.