@DefaultQualifier(value=org.checkerframework.checker.nullness.qual.NonNull.class,locations=FIELD) @DefaultQualifier(value=org.checkerframework.checker.nullness.qual.NonNull.class,locations=PARAMETER) @DefaultQualifier(value=org.checkerframework.checker.nullness.qual.NonNull.class,locations=RETURN)

Package org.apache.calcite.sql2rel

Translates a SQL parse tree to relational expression.

See: Description

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.AdjustProjectForCountAggregateRuleConfig	Rule configuration.
RelDecorrelator.Config	Base configuration for rules that are non-static in a RelDecorrelator.
RelDecorrelator.RemoveCorrelationForScalarAggregateRule.RemoveCorrelationForScalarAggregateRuleConfig	Rule configuration.
RelDecorrelator.RemoveCorrelationForScalarProjectRule.RemoveCorrelationForScalarProjectRuleConfig	Rule configuration.
RelDecorrelator.RemoveSingleAggregateRule.RemoveSingleAggregateRuleConfig	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 SqlRexConvertlets.
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.
CorrelateProjectExtractor	A visitor for relational expressions that extracts a Project, with a "simple" computation over the correlated variables, from the right side of a correlation (Correlate) and places it on the left side.
CorrelationReferenceFinder	Shuttle that finds references to a given CorrelationId within a tree of RelNodes.
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 RelNodes.
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 an Aggregate with SINGLE_VALUE.
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.SqlIdentifierFinder	Visitor that looks for an SqlIdentifier inside a tree of SqlNode objects and return Boolean.TRUE when it finds one.
StandardConvertletTable	Standard implementation of SqlRexConvertletTable.

Package org.apache.calcite.sql2rel Description

Translates a SQL parse tree to relational expression.