Add support for Prometheus plugin

[fgwang7w]

resolves #15176
Test plan - tesed locally, add UT coverage for this connector

== RELEASE NOTES ==

General Changes
* Add support for Prometheus connector plugin

[aweisberg]

Was there code in this PR copied from another project? If so please follow the attribution guidelines.

[gtangthousandeyes]

hello team, just curious. Is the prometheus plug-in ready to roll out? I see these in the presto documentation https://prestosql.io/docs/current/connector/prometheus.html but I do not see a prometheus-plugin in the master branch

[findepi]

@gtangthousandeyes PrestoSQL releases are maintained at https://github.com/prestosql/presto.
Also, there is the #troubleshooting channel on Presto Community Slack (https://prestosql.io/slack.html)

[fgwang7w]

@highker could you please help review this pr again? Thanks!

[fgwang7w]

@highker I fixed all the comments and ensure to use TIMESTAMP WITH TIME ZONE from Prometheus connector, please help review and approve the merge as many users are waiting for this feature to go in prestodb. many thanks!

[highker]

will leave it to @zhenxiao to take a look

[fgwang7w]

@qqibrow @highker revision is ready for review. there was some issue with dependency issue and conflicts which are resolved now.

[fgwang7w]

@zhenxiao could you please help give a final round of review on this PR? Thank you very much !

[qqibrow]

Overall looks good! Left a few comments.

[fgwang7w]

@zhenxiao all comments are addressed. please help review this PR, many thanks for your help!

[fgwang7w]

@highker @zhenxiao @qqibrow thank you all for reviewing the PRs. all of your comments were addressed and revisions are made accordingly. Test is good, could we have a final check on this PR? some community folks are asking for the status of this PR waiting for the feature to use. many thanks @beinan for your help too!

[beinan]

The implementation looks good to me except a couple of coding style issue. But I might hesitate to put this connector into prestodb repo. As we discussed in the TSC meeting, @rongrong do you think if we can put this connector into a separate "plugins" repo? Or we can just merge it into the prestodb repo and then move it out? I think this connector would be a good starting point for the separate "plugins" repo.

[fgwang7w]

The implementation looks good to me except a couple of coding style issue. But I might hesitate to put this connector into prestodb repo. As we discussed in the TSC meeting, @rongrong do you think if we can put this connector into a separate "plugins" repo? Or we can just merge it into the prestodb repo and then move it out? I think this connector would be a good starting point for the separate "plugins" repo.

Thank you @beinan very much for approving the PR and giving a final review. Since this connector has finally been approved after a long wait and some community members are waiting for this feature to use, will it make sense to merge now?
Separation of plugins into a different repo could be done in a different PR once the decision on how and what connectors to separate from presto is made. It does not make sense to have a bunch of plugin connectors live in one repo and bunch of other connectors in a separate repo. FYI..@tdcmeehan

[tdcmeehan]

There's some infrastructure that needs to be set up before we can push forward on that approach, such as release jobs. Additionally, though it was discussed at the TSC meeting, it didn't reach consensus, and more followup discussion is needed. I would say for now let's keep it where it is, and we can find another good candidate in the future.

[beinan]

Thank you @fgwang7w ,@tdcmeehan and all the reviewers of this giant PR! Let me merge this one to unblock @fgwang7w 's further work. I think we can discuss more about when and how we should separate plugins to another repo in the next TSC meeting.

[fgwang7w]

Thank you all @zhenxiao @highker @beinan @qqibrow for reviewing this very big PR, and many thanks for all community collaboration and teamwork to make it happen.
@tdcmeehan Thanks for clarification. Happy to help community to build the infrastructure work on presto plugin repo if the final consensus is made given that I added 3 connectors already to the community :-)
@gtangthousandeyes FYI... Prometheus plugin will be available in the upcoming release.