A lot of metics not implemented warn logs.

[Cluas]

Describe the bug
A lot of metics not implemented warn logs.

Screenshots

[jbub]

Looking at the prometheus metrics it seems also these are not updated/not filled:

pgcat_stats_total_xact_time
pgcat_stats_avg_errors
pgcat_stats_avg_xact_time
pgcat_servers_query_count
pgcat_servers_error_count

[tmizohata-alist]

@levkk By reading the code, it seems this is generated by a debug! macro. I understand that implementing all of those metrics might be a big deal. But can it use at least the correct logging severity (IMO DEBUG severity) so that they can be ignored in the logger level?

[levkk]

Sure. Implementing those metrics shouldn't be too difficult either, you can refer to the admin database for implementation. PRs for either paths are welcome.