Add timezone('TIMEZONE', TIMESTAMP) to the out of the box functions for PostgreSQL10Dialect

Description

There is no out of the box support for the timezone function. I would like to add it. This is a way for me to add something simple and contribute to the project. I understand if someone else wants to do it but I would also like to volunteer to do it.

Environment

None

Assignee

Unassigned

Reporter

Steve Pousty

Fix versions

None

Labels

None

backPortable

Backport?

Suitable for new contributors

Yes, likely

Requires Release Note

None

Pull Request

None

backportDecision

None

Priority

Major
Configure