Uses of Class
org.apache.calcite.rex.RexShuttle

Packages that use RexShuttle

Package	Description
org.apache.calcite.plan	Defines interfaces for constructing rule-based optimizers of relational expressions.
org.apache.calcite.rel	Defines relational expressions.
org.apache.calcite.rel.core	Defines core relational expressions.
org.apache.calcite.rel.metadata	Defines metadata interfaces and utilities for relational expressions.
org.apache.calcite.rel.rules	Provides a core set of planner rules.
org.apache.calcite.rex	Provides a language for representing row-expressions.
org.apache.calcite.sql2rel	Translates a SQL parse tree to relational expression.
org.apache.calcite.tools	Provides utility classes.

Uses of RexShuttle in org.apache.calcite.plan

Subclasses of RexShuttle in org.apache.calcite.plan

Modifier and Type	Class and Description
static class	RelOptUtil.InputReferencedVisitor Shuttle that finds the set of inputs that are used.
static class	RelOptUtil.RexInputConverter Walks an expression tree, converting the index of RexInputRefs based on some adjustment factor.
static class	RelOptUtil.VariableUsedVisitor Visitor that finds all variables used in an expression.

Methods in org.apache.calcite.plan that return RexShuttle

Modifier and Type	Method and Description
protected static RexShuttle	SubstitutionVisitor.getRexShuttle(MutableProject target) Builds a shuttle that stores a list of expressions, and can map incoming expressions to references to them.
private static RexShuttle	RelOptUtil.pushShuttle(Project project)

Methods in org.apache.calcite.plan with parameters of type RexShuttle

Modifier and Type	Method and Description
protected MutableRel	SubstitutionVisitor.FilterToProjectUnifyRule.invert(List<Pair<RexNode,String>> namedProjects, MutableRel input, RexShuttle shuttle)

Uses of RexShuttle in org.apache.calcite.rel

Methods in org.apache.calcite.rel with parameters of type RexShuttle

Modifier and Type	Method and Description
RelNode	AbstractRelNode.accept(RexShuttle shuttle)
RelNode	RelNode.accept(RexShuttle shuttle) Accepts a visit from a shuttle.

Uses of RexShuttle in org.apache.calcite.rel.core

Methods in org.apache.calcite.rel.core with parameters of type RexShuttle

Modifier and Type	Method and Description
RelNode	Filter.accept(RexShuttle shuttle)
RelNode	Project.accept(RexShuttle shuttle)
RelNode	Calc.accept(RexShuttle shuttle)
RelNode	TableFunctionScan.accept(RexShuttle shuttle)
RelNode	Sort.accept(RexShuttle shuttle)
RelNode	Join.accept(RexShuttle shuttle)

Uses of RexShuttle in org.apache.calcite.rel.metadata

Subclasses of RexShuttle in org.apache.calcite.rel.metadata

Modifier and Type	Class and Description
private static class	RelMdExpressionLineage.RexReplacer Replaces expressions with their equivalences.

Uses of RexShuttle in org.apache.calcite.rel.rules

Subclasses of RexShuttle in org.apache.calcite.rel.rules

Modifier and Type	Class and Description
private static class	CalcRelSplitter.InputToCommonExprConverter Shuttle which converts every reference to an input field in an expression to a reference to a common sub-expression.
(package private) static class	DateRangeRules.ExtractShuttle Walks over an expression, replacing calls to EXTRACT, FLOOR and CEIL with date ranges.
private class	FilterRemoveIsNotDistinctFromRule.RemoveIsNotDistinctFromRexShuttle Shuttle that removes 'x IS NOT DISTINCT FROM y' and converts it to 'CASE WHEN x IS NULL THEN y IS NULL WHEN y IS NULL THEN x IS NULL ELSE x = y END'.
private class	PushProjector.RefAndExprConverter Walks an expression tree, replacing input refs with new values to reflect projection and converting special expressions to field references.
class	ReduceDecimalsRule.DecimalShuttle A shuttle which converts decimal expressions to expressions based on longs.
protected static class	ReduceExpressionsRule.CaseShuttle Shuttle that pushes predicates into a CASE.
protected static class	ReduceExpressionsRule.RexReplacer Replaces expressions with their reductions.
private static class	SubQueryRemoveRule.ReplaceSubQueryShuttle Shuttle that replaces occurrences of a given RexSubQuery with a replacement expression.
private static class	ValuesReduceRule.MyRexShuttle Shuttle that converts inputs to literals.

Methods in org.apache.calcite.rel.rules with parameters of type RexShuttle

Modifier and Type	Method and Description
RelNode	MultiJoin.accept(RexShuttle shuttle)

Uses of RexShuttle in org.apache.calcite.rex

Subclasses of RexShuttle in org.apache.calcite.rex

Modifier and Type	Class and Description
(package private) class	RexCopier Shuttle which creates a deep copy of a Rex expression.
class	RexPermutationShuttle Visitor which replaces RexLocalRef objects after the expressions in a RexProgram have been reordered.
class	RexPermuteInputsShuttle Shuttle which applies a permutation to its input fields.
(package private) static class	RexProgram.ExpansionShuttle A RexShuttle used in the implementation of RexProgram.expandLocalRef(org.apache.calcite.rex.RexLocalRef).
private class	RexProgramBuilder.RegisterInputShuttle Shuttle which walks over an expression, registering each sub-expression.
private class	RexProgramBuilder.RegisterMidputShuttle Extension to RexProgramBuilder.RegisterInputShuttle which allows expressions to be in terms of inputs or previous common sub-expressions.
private class	RexProgramBuilder.RegisterOutputShuttle Shuttle which walks over an expression, registering each sub-expression.
private class	RexProgramBuilder.RegisterShuttle Shuttle that visits a tree of RexNode and registers them in a program.
private class	RexProgramBuilder.UpdateRefShuttle Shuttle which rewires RexLocalRef using a list of updated references
static class	RexUtil.ExprSimplifier Deep expressions simplifier.
static class	RexUtil.FixNullabilityShuttle Shuttle that fixes up an expression to match changes in nullability of input fields.
private static class	RexUtil.RexShiftShuttle Shuttle that adds offset to each RexInputRef in an expression.

Methods in org.apache.calcite.rex with parameters of type RexShuttle

Modifier and Type	Method and Description
private void	RexProgramBuilder.add(List<RexNode> exprList, List<RexLocalRef> projectRefList, RexLocalRef conditionRef, RelDataType outputRowType, RexShuttle shuttle, boolean updateRefs) Adds a set of expressions, projections and filters, applying a shuttle first.
static RexProgramBuilder	RexProgramBuilder.create(RexBuilder rexBuilder, RelDataType inputRowType, List<RexNode> exprList, List<RexLocalRef> projectRefList, RexLocalRef conditionRef, RelDataType outputRowType, RexShuttle shuttle, boolean updateRefs) Creates a program builder with the same contents as a program, applying a shuttle first.

Uses of RexShuttle in org.apache.calcite.sql2rel

Subclasses of RexShuttle in org.apache.calcite.sql2rel

Modifier and Type	Class and Description
private static class	CorrelationReferenceFinder.MyRexVisitor Replaces alternative names of correlation variable to its canonical name.
private static class	DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle Replaces alternative names of correlation variable to its canonical name.
private static class	RelDecorrelator.DecorrelateRexShuttle Shuttle that decorrelates.
private class	RelDecorrelator.RemoveCorrelationRexShuttle Shuttle that removes correlations.
private class	RelStructuredTypeFlattener.RewriteRexShuttle Shuttle that rewrites scalar expressions.
private class	SqlToRelConverter.HistogramShuttle Shuttle which walks over a tree of RexNodes and applies 'over' to all agg functions.

Fields in org.apache.calcite.sql2rel declared as RexShuttle

Modifier and Type	Field and Description
private RexShuttle	DeduplicateCorrelateVariables.dedupRex

Uses of RexShuttle in org.apache.calcite.tools

Subclasses of RexShuttle in org.apache.calcite.tools

Modifier and Type	Class and Description
private class	RelBuilder.Shifter Shuttle that shifts a predicate's inputs to the left, replacing early ones with references to a RexCorrelVariable.