[FLINK-3615] Add support for non-native SQL types

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Component/s: Table SQL / API
• Assignee: Unassigned
• Reporter: Vasia Kalavri
• Created: 15/Mar/16 14:11
• Updated: 09/Jan/17 11:44
• Resolved: 09/Jan/17 11:44

Description

The TypeConverter of the Table API currently only supports basic types. We should maybe re-design the way sqlTypeToTypeInfo works. It is used in the CodeGenerator for visiting literals, in DataSetAggregate to create the RowTypeInfo and in determineReturnType. We could maybe provide a custom implementation per operator to determine the return type, based on the input fields.