Calcite - Traits (Relational expression validation)

About

Traits represents a trait of a relational expression that does not alter the execution. They are used to validate the plan output.

They implements the RelTrait interface and

Type

Three primary traits type:

  • Convention
  • Recollation
  • RelDistribution

Conventions

convention is a type of trait. They are used to represent a single data source. More Calcite - Convention


Powered by ComboStrap