[CALCITE-3462] Add projectExcept method in RelBuilder for projecting out expressions

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 1.21.0
• Fix Version/s: 1.22.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Stamatis Zampetakis
• Reporter: Stamatis Zampetakis
• Created: 30/Oct/19 16:22
• Updated: 06/Mar/20 04:36
• Resolved: 12/Dec/19 12:29

Description

Add a new method in RelBuilder (i.e., RelBuilder.projectMinus) to facilitate the task of projecting out certain expressions from the top of the plan.

The proposed method is purely for convenience and is the dual of the existing RelBuilder.projectPlus.

Issue Links

• links to: GitHub Pull Request #1554