Add TLP Having Oracle

[sdf-jkl]

Builds on top of #2.

Added group by, having support for select statement.

Moved our common TLP logic out of TLP Where Oracle.

Added a TLP Having Oracle.

[sdf-jkl]

@2010YOUY01 Please take a look when available!

[2010YOUY01]

Thank you, this PR is well written. I have left some minor suggestions for you to consider.

A potential follow-up to do for better test coverage is supporting aggregate expressions in the select statement.

I also plan to clean up the README and move this repo to https://github.com/datafusion-contrib shortly. After that, the next steps are to add sufficient test coverage so it can consistently detect bugs, and later write a blog post and start doing CI integration.

[sdf-jkl]

@2010YOUY01 please check again.

A potential follow-up to do for better test coverage is supporting aggregate expressions in the select statement.

I'll work on it in the next PR.

I also plan to clean up the README and move this repo to https://github.com/datafusion-contrib shortly. After that, the next steps are to add sufficient test coverage so it can consistently detect bugs, and later write a blog post and start doing CI integration.

🚀 We can start filing issues for different oracles and other improvements once you do