How to manage table spaces and storage configuration in PostgreSQL?

In PostgreSQL, table spaces and storage configuration can be managed by following these steps:

1. To create a tablespace, use the CREATE TABLESPACE command to specify the name, location, and other parameters for the new tablespace. For example:

CREATE TABLESPACE ts1 LOCATION '/path/to/directory';

1. To view tablespaces: Use the \db or \db+ command to view information about all tablespaces. For example:

\db

1. Modify tablespace: You can use the ALTER TABLESPACE command to change the parameters of a tablespace, such as its location. For example:

ALTER TABLESPACE ts1 LOCATION '/new/path/to/directory';

1. To delete a tablespace, use the DROP TABLESPACE command to remove any unnecessary tablespace. It is important to note that deleting a tablespace will also remove all of its data. For example:

DROP TABLESPACE ts1;

1. Storage parameters can be configured by modifying the PostgreSQL configuration file postgresql.conf, such as data directory and maximum number of connections. The changes will only take effect after restarting the database. For example:

data_directory = '/path/to/data/directory'
max_connections = 100

1. Specifying tablespace for a specific table: When creating a table, you can use the tablespace parameter to store the table in a specific tablespace. For example:

CREATE TABLE my_table (...) TABLESPACE ts1;

By following the above steps, you can manage table spaces and storage configuration in PostgreSQL.