[FLINK-15958] Fully support RAW types in the API

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Table SQL / API, Table SQL / Planner
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 07/Feb/20 15:11
• Updated: 19/Mar/20 09:46
• Resolved: 19/Mar/20 09:46

Description

Currently, the Table API does not expose a way of creating RAW types without a DataTypeFactory. The reason for that is that RAW types need to be resolved at a later stage. This is similar to user-defined types that need to be resolved from the catalog.

API changes:

• Introduction of AbstractDataType as the highest type of resolved and unresolved data types

• Introduction of DataTypes.of() for classes and names and DataTypes.RAW(Class) for unresolved types

• Helper classes and methods for constructing unresolved types type-safe

We also need better support in the Blink planner for that.

Issue Links

• links to: GitHub Pull Request #11153