org.apache.calcite.sql2rel (Apache Calcite core API)

Interface Summary
Interface	Description
AuxiliaryConverter	Converts an expression for a group window function (e.g.
InitializerContext	Provides context for `InitializerExpressionFactory` methods.
InitializerExpressionFactory	InitializerExpressionFactory supplies default values for INSERT, UPDATE, and NEW.
RelDecorrelator.AdjustProjectForCountAggregateRule.Config	Rule configuration.
RelDecorrelator.Config	Base configuration for rules that are non-static in a RelDecorrelator.
RelDecorrelator.RemoveCorrelationForScalarAggregateRule.Config	Rule configuration.
RelDecorrelator.RemoveCorrelationForScalarProjectRule.Config	Rule configuration.
RelDecorrelator.RemoveSingleAggregateRule.Config	Rule configuration.
RelStructuredTypeFlattener.SelfFlatteningRel	Mix-in interface for relational expressions that know how to flatten themselves.
SqlNodeToRexConverter	Converts expressions from `SqlNode` to `RexNode`.
SqlRexContext	Contains the context necessary for a `SqlRexConvertlet` to convert a `SqlNode` expression into a `RexNode`.
SqlRexConvertlet	Thunk which converts a `SqlNode` expression into a `RexNode` expression.
SqlRexConvertletTable	Collection of `SqlRexConvertlet`s.
SqlToRelConverter.Config	Interface to define the configuration for a SqlToRelConverter.
SubQueryConverter	SubQueryConverter provides the interface for classes that convert sub-queries into equivalent expressions.

Class Summary
Class	Description
AuxiliaryConverter.Impl	Simple implementation of `AuxiliaryConverter`.
CorrelationReferenceFinder	Shuttle that finds references to a given `CorrelationId` within a tree of `RelNode`s.
DeduplicateCorrelateVariables	Rewrites relations to ensure the same correlation is referenced by the same correlation variable.
NullInitializerExpressionFactory	An implementation of `InitializerExpressionFactory` that always supplies NULL.
ReflectiveConvertletTable	Implementation of `SqlRexConvertletTable` which uses reflection to call any method of the form `public RexNode convertXxx(ConvertletContext, SqlNode)` or `public RexNode convertXxx(ConvertletContext, SqlOperator, SqlCall)`.
RelDecorrelator	RelDecorrelator replaces all correlated expressions (corExp) in a relational expression (RelNode) tree with non-correlated expressions that are produced from joining the RelNode that produces the corExp with the RelNode that references it.
RelDecorrelator.AdjustProjectForCountAggregateRule	Planner rule that adjusts projects when counts are added.
RelDecorrelator.CorelMap	A map of the locations of `Correlate` in a tree of `RelNode`s.
RelDecorrelator.CorelMapBuilder	Builds a `RelDecorrelator.CorelMap`.
RelDecorrelator.RemoveCorrelationForScalarAggregateRule	Planner rule that removes correlations for scalar aggregates.
RelDecorrelator.RemoveCorrelationForScalarProjectRule	Planner rule that removes correlations for scalar projects.
RelDecorrelator.RemoveSingleAggregateRule	Rule to remove single_value rel.
RelFieldTrimmer	Transformer that walks over a tree of relational expressions, replacing each `RelNode` with a 'slimmed down' relational expression that projects only the columns required by its consumer.
RelFieldTrimmer.TrimResult	Result of an attempt to trim columns from a relational expression.
RelStructuredTypeFlattener	RelStructuredTypeFlattener removes all structured types from a tree of relational expressions.
SqlNodeToRexConverterImpl	Standard implementation of `SqlNodeToRexConverter`.
SqlToRelConverter	Converts a SQL parse tree (consisting of `SqlNode` objects) into a relational algebra expression (consisting of `RelNode` objects).
SqlToRelConverter.ConfigBuilder	Deprecated
StandardConvertletTable	Standard implementation of `SqlRexConvertletTable`.

Package org.apache.calcite.sql2rel Description

Translates a SQL parse tree to relational expression.