Generate ALTER SYSTEM commands

Hi, thx for great tool.

After postgresql 9.4 you can use ALTER SYSTEM SET to change individual options. IMO it will be good that those statements are also generated. This way you can very easy change configuration.

So that you get something like this:

ALTER SYSTEM SET max_connections = '16';
ALTER SYSTEM SET shared_buffers = '4GB';
ALTER SYSTEM SET effective_cache_size = '12GB';
ALTER SYSTEM SET work_mem = '256MB';
ALTER SYSTEM SET maintenance_work_mem = '1GB';
ALTER SYSTEM SET min_wal_size = '1GB';
ALTER SYSTEM SET max_wal_size = '2GB';
ALTER SYSTEM SET checkpoint_completion_target = '0.7';
ALTER SYSTEM SET wal_buffers = '16MB';
ALTER SYSTEM SET default_statistics_target = '100';

br

[le0pard]

@josuamarcelc let’s read for example shared_buffers setting from official doc

https://www.postgresql.org/docs/14/runtime-config-resource.html

This parameter can only be set at server start.

Same for max_worker_processes

This parameter can only be set at server start

And many other params.

So your proposal will not work.

[le0pard]

Released new version with “ALTER SYSTEM” commands