org.apache.calcite.sql2rel (Calcite Core 1.10.0 API)

Interface Summary
Interface	Description
DefaultValueFactory	DefaultValueFactory supplies default values for INSERT, UPDATE, and NEW.
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 subqueries into equivalent expressions.

Class Summary
Class	Description
CorrelationReferenceFinder	Shuttle that finds references to a given `CorrelationId` within a tree of `RelNode`s.
CorrelationReferenceFinder.MyRexVisitor	Replaces alternative names of correlation variable to its canonical name.
DeduplicateCorrelateVariables	Rewrites relations to ensure the same correlation is referenced by the same correlation variable.
DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle	Replaces alternative names of correlation variable to its canonical name.
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.CorelMap	A map of the locations of `LogicalCorrelate` in a tree of `RelNode`s.
RelDecorrelator.CorelMapBuilder	Builds a `RelDecorrelator.CorelMap`.
RelDecorrelator.Correlation	`Correlation` here represents a unique reference to a correlation field.
RelDecorrelator.Frame	Frame describing the relational expression after decorrelation and where to find the output fields and correlation variables among its output fields.
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.AggregateFinder	Visitor that collects all aggregate functions in a `SqlNode` tree.
SqlToRelConverter.ConfigBuilder	Builder for a `SqlToRelConverter.Config`.
SqlToRelConverter.ConfigImpl	Implementation of `SqlToRelConverter.Config`.
SqlToRelConverter.CorrelationUse	Use of a row as a correlating variable by a given relational expression.
SqlToRelConverter.DeferredLookup	Deferred lookup.
SqlToRelConverter.LookupContext	Context to find a relational expression to a field offset.
SqlToRelConverter.SubQuery	A sub-query, whether it needs to be translated using 2- or 3-valued logic.
StandardConvertletTable	Standard implementation of `SqlRexConvertletTable`.
StandardConvertletTable.AvgVarianceConvertlet	Convertlet that handles `AVG` and `VARIANCE` windowed aggregate functions.
StandardConvertletTable.GreatestConvertlet	Convertlet that converts `GREATEST` and `LEAST`.
StandardConvertletTable.TimestampAddConvertlet	Convertlet that handles the `TIMESTAMPADD` function.
StandardConvertletTable.TimestampDiffConvertlet	Convertlet that handles the `TIMESTAMPDIFF` function.
StandardConvertletTable.TrimConvertlet	Convertlet that converts `LTRIM` and `RTRIM` to `TRIM`.

Package org.apache.calcite.sql2rel Description

Translates a SQL parse tree to relational expression.