Originally described in epic #1217 which closed as now detailing it here in a milestone

Description of Problem:

We want to make the DataHelix as easy and intuitive to use as possible.

Moving constraints to field definitions - #1303

• Types - #1320
• Nullability
• Uniqueness
• Formatting
• Granularity
• Min/max length
• Numeric range allowed (simple combinations of greaterThan and lessThan)

Datetime

• Replace datetime with date, time and datetime

Add isNot construction - #1001

Alternative (already existing) formats

• https://frictionlessdata.io/specs/table-schema/

Schema Validation

Related to #1243

Minor Tweaks

• Allow type definitions for financial types to be lowercase - #1200
• Once type is a field definition, allow quotes around numbers.