[FLINK-12996] Add predefined type validators, strategies, and transformations

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9.0
• Fix Version/s: 1.12.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 26/Jun/19 09:37
• Updated: 13/Jul/20 12:14
• Resolved: 13/Jul/20 12:14

Description

 FLINK-12924 introduced new interfaces for performing type inference. We need a set of predefined type validators, strategies, and transformations implemented with the new interfaces in order to represent the old type checking logic. Those interfaces can be inspired by Calcite's org.apache.calcite.sql.type.ReturnTypes, org.apache.calcite.sql.type.OperandTypes, and org.apache.calcite.sql.type.SqlTypeTransforms.

Issue Links

• is a parent of: FLINK-13015 Create validators, strategies and transformations required for porting logical expressions
• links to: GitHub Pull Request #10312