Package org.apache.calcite.rel.convert

Defines relational expressions and rules for converting between calling conventions.

Interface Summary

Interface	Description
Converter	A relational expression implements the interface Converter to indicate that it converts a physical attribute, or trait, of a relational expression from one value to another.

Class Summary

Class	Description
ConverterImpl	Abstract implementation of Converter.
ConverterRule	Abstract base class for a rule which converts from one calling convention to another without changing semantics.
NoneConverter	NoneConverter converts a plan from inConvention to Convention.NONE.
TraitMatchingRule	TraitMatchingRule adapts a converter rule, restricting it to fire only when its input already matches the expected output trait.