Package  Description 

org.apache.calcite.adapter.druid 
Query provider based on a Druid database.

org.apache.calcite.plan 
Defines interfaces for constructing rulebased optimizers of
relational expressions.

org.apache.calcite.rel.rules 
Provides a core set of planner rules.

Class  Description 

AggregateFilterTransposeRule  
FilterAggregateTransposeRule  
FilterProjectTransposeRule 
Planner rule that pushes
a
LogicalFilter
past a LogicalProject . 
ProjectFilterTransposeRule  
ProjectSortTransposeRule  
SortProjectTransposeRule 
Class  Description 

MultiJoin 
A MultiJoin represents a join of N inputs, whereas regular Joins
represent strictly binary joins.

Class  Description 

AbstractMaterializedViewRule  
AbstractMaterializedViewRule.MaterializedViewOnlyAggregateRule 
Rule that matches Aggregate.

AbstractMaterializedViewRule.MaterializedViewOnlyFilterRule 
Rule that matches Filter.

AbstractMaterializedViewRule.MaterializedViewOnlyJoinRule 
Rule that matches Join.

AbstractMaterializedViewRule.MaterializedViewProjectAggregateRule 
Rule that matches Project on Aggregate.

AbstractMaterializedViewRule.MaterializedViewProjectFilterRule 
Rule that matches Project on Filter.

AbstractMaterializedViewRule.MaterializedViewProjectJoinRule 
Rule that matches Project on Join.

AggregateExpandDistinctAggregatesRule 
Planner rule that expands distinct aggregates
(such as
COUNT(DISTINCT x) ) from a
Aggregate . 
AggregateFilterTransposeRule  
AggregateJoinTransposeRule  
AggregateProjectMergeRule  
AggregateProjectPullUpConstantsRule 
Planner rule that removes constant keys from an
Aggregate . 
AggregateReduceFunctionsRule 
Planner rule that reduces aggregate functions in
Aggregate s to simpler forms. 
AggregateRemoveRule 
Planner rule that removes
a
Aggregate
if it computes no aggregate functions
(that is, it is implementing SELECT DISTINCT )
and the underlying relational expression is already distinct. 
AggregateStarTableRule 
Planner rule that matches an
Aggregate on
top of a StarTable.StarTableScan . 
AggregateUnionAggregateRule  
AggregateUnionTransposeRule  
AggregateValuesRule  
CalcMergeRule 
Planner rule that merges a
LogicalCalc onto a
LogicalCalc . 
CalcRemoveRule 
Planner rule that removes a trivial
LogicalCalc . 
CalcSplitRule  
FilterAggregateTransposeRule  
FilterCalcMergeRule 
Planner rule that merges a
LogicalFilter and a
LogicalCalc . 
FilterCorrelateRule  
FilterJoinRule 
Planner rule that pushes filters above and
within a join node into the join node and/or its children nodes.

FilterJoinRule.Predicate 
Predicate that returns whether a filter is valid in the ON clause of a
join for this particular kind of join.

FilterMergeRule 
Planner rule that combines two
LogicalFilter s. 
FilterMultiJoinMergeRule  
FilterProjectTransposeRule 
Planner rule that pushes
a
LogicalFilter
past a LogicalProject . 
FilterRemoveIsNotDistinctFromRule 
Planner rule that replaces
IS NOT DISTINCT FROM
in a LogicalFilter
with logically equivalent operations. 
FilterSetOpTransposeRule  
FilterTableFunctionTransposeRule 
Planner rule that pushes
a
LogicalFilter
past a LogicalTableFunctionScan . 
FilterTableScanRule 
Planner rule that converts
a
Filter
on a TableScan
of a FilterableTable
or a ProjectableFilterableTable
to a Bindables.BindableTableScan . 
FilterToCalcRule 
Planner rule that converts a
LogicalFilter to a
LogicalCalc . 
IntersectToDistinctRule  
JoinAddRedundantSemiJoinRule 
Rule to add a semijoin into a join.

JoinAssociateRule 
Planner rule that changes a join based on the associativity rule.

JoinCommuteRule 
Planner rule that permutes the inputs to a
Join . 
JoinExtractFilterRule  
JoinProjectTransposeRule 
Planner rule that matches a
Join one of whose inputs is a
LogicalProject , and
pulls the project up. 
JoinPushExpressionsRule 
Planner rule that pushes down expressions in "equal" join condition.

JoinPushTransitivePredicatesRule  
JoinToCorrelateRule 
Rule that converts a
LogicalJoin
into a LogicalCorrelate , which can
then be implemented using nested loops. 
JoinToMultiJoinRule 
Planner rule to flatten a tree of
LogicalJoin s
into a single MultiJoin with N inputs. 
JoinUnionTransposeRule  
LoptJoinTree 
Utility class used to store a
Join tree
and the factors that make up the tree. 
LoptJoinTree.BinaryTree 
Simple binary tree class that stores an id in the leaf nodes and keeps
track of the parent LoptJoinTree object associated with the binary tree.

LoptMultiJoin 
Utility class that keeps track of the join factors that
make up a
MultiJoin . 
LoptOptimizeJoinRule 
Planner rule that implements the heuristic planner for determining optimal
join orderings.

MaterializedViewFilterScanRule  
MultiJoin 
A MultiJoin represents a join of N inputs, whereas regular Joins
represent strictly binary joins.

MultiJoinOptimizeBushyRule 
Planner rule that finds an approximately optimal ordering for join operators
using a heuristic algorithm.

MultiJoinProjectTransposeRule 
MultiJoinProjectTransposeRule implements the rule for pulling
LogicalProject s that are on top of a
MultiJoin and beneath a
LogicalJoin so the
LogicalProject appears above the
LogicalJoin . 
ProjectCalcMergeRule 
Planner rule which merges a
LogicalProject and a
LogicalCalc . 
ProjectFilterTransposeRule  
ProjectJoinTransposeRule  
ProjectMergeRule  
ProjectMultiJoinMergeRule  
ProjectRemoveRule 
Planner rule that,
given a
Project node that
merely returns its input, converts the node into its child. 
ProjectSetOpTransposeRule 
Planner rule that pushes
a
LogicalProject
past a SetOp . 
ProjectSortTransposeRule  
ProjectTableScanRule 
Planner rule that converts a
Project
on a TableScan
of a ProjectableFilterableTable
to a Bindables.BindableTableScan . 
ProjectToCalcRule 
Rule to convert a
LogicalProject to a
LogicalCalc 
ProjectToWindowRule 
Planner rule that slices a
Project
into sections which contain windowed
aggregate functions and sections which do not. 
ProjectWindowTransposeRule 
Planner rule that pushes
a
LogicalProject
past a LogicalWindow . 
PushProjector.ExprCondition 
A functor that replies true or false for a given expression.

ReduceDecimalsRule 
ReduceDecimalsRule is a rule which reduces decimal operations (such as casts
or arithmetic) into operations involving more primitive types (such as longs
and doubles).

ReduceExpressionsRule 
Collection of planner rules that apply various simplifying transformations on
RexNode trees.

SemiJoinFilterTransposeRule  
SemiJoinJoinTransposeRule  
SemiJoinProjectTransposeRule  
SemiJoinRemoveRule 
Planner rule that removes a
SemiJoin s
from a join tree. 
SemiJoinRule  
SortJoinTransposeRule  
SortProjectTransposeRule  
SortRemoveRule 
Planner rule that removes
a
Sort if its input is already sorted. 
SortUnionTransposeRule  
SubQueryRemoveRule 
Transform that converts IN, EXISTS and scalar subqueries into joins.

TableScanRule 
Planner rule that converts a
LogicalTableScan to the result
of calling RelOptTable.toRel(org.apache.calcite.plan.RelOptTable.ToRelContext) . 
UnionEliminatorRule 
UnionEliminatorRule checks to see if its possible to optimize a
Union call by eliminating the Union operator altogether in the case the call
consists of only one input. 
UnionMergeRule  
UnionPullUpConstantsRule 
Planner rule that pulls up constants through a Union operator.

UnionToDistinctRule  
ValuesReduceRule 
Planner rule that folds projections and filters into an underlying
LogicalValues . 
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