[FLINK-3596] DataSet RelNode refactoring

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.1.0
• Component/s: Table SQL / API
• Assignee: Vasia Kalavri
• Reporter: Vasia Kalavri
• Created: 09/Mar/16 14:42
• Updated: 11/Mar/16 08:02
• Resolved: 11/Mar/16 08:02

Description

After discussion with fhueske, chengxiang li, and twalthr, we have decided to make the following refactoring:

• Make the DataSet RelNodes correspond to logical relational operators.
• Move the code generation from the rules into the DataSet RelNodes.
• Remove the Flink RelNode layer and have a 1-pass translation instead of a 2-pass translation as currently.