Uses of Class
edu.caltech.nanodb.plannodes.PlanNode

Packages that use PlanNode

Package	Description
edu.caltech.nanodb.commands	This package contains the classes that represent the commands that the NanoSQL database recognizes.
edu.caltech.nanodb.expressions	This package contains classes for representing and evaluating arithmetic and logical expressions.
edu.caltech.nanodb.plannodes	This package contains classes for representing query execution plans, as well as analyzing their costs.
edu.caltech.nanodb.queryeval	This package contains the query-evaluation components of the database.

Uses of PlanNode in edu.caltech.nanodb.commands

Fields in edu.caltech.nanodb.commands declared as PlanNode

Modifier and Type	Field	Description
protected PlanNode	QueryCommand.plan

Methods in edu.caltech.nanodb.commands that return PlanNode

Modifier and Type	Method	Description
protected abstract PlanNode	DumpCommand.prepareDumpPlan(NanoDBServer server)
protected PlanNode	DumpIndexCommand.prepareDumpPlan(NanoDBServer server)
protected PlanNode	DumpTableCommand.prepareDumpPlan(NanoDBServer server)

Uses of PlanNode in edu.caltech.nanodb.expressions

Fields in edu.caltech.nanodb.expressions declared as PlanNode

Modifier and Type	Field	Description
protected PlanNode	SubqueryOperator.subqueryPlan	The execution plan for the subquery that is used by the operator.

Methods in edu.caltech.nanodb.expressions that return PlanNode

Modifier and Type	Method	Description
PlanNode	SubqueryOperator.getSubqueryPlan()	Retrieves the current execution plan for the subquery.

Methods in edu.caltech.nanodb.expressions with parameters of type PlanNode

Modifier and Type	Method	Description
void	SubqueryOperator.setSubqueryPlan(PlanNode plan)	Sets the execution plan for evaluating the subquery.

Uses of PlanNode in edu.caltech.nanodb.plannodes

Subclasses of PlanNode in edu.caltech.nanodb.plannodes

Modifier and Type	Class	Description
class	FileScanNode	A select plan-node that scans a tuple file, checking the optional predicate against each tuple in the file.
class	GroupAggregateNode	This class provides the common functionality necessary for grouping and aggregation.
class	HashedGroupAggregateNode	Implements grouping and aggregation by using hashing as a method to identify groups.
class	NestedLoopJoinNode	This plan node implements a nested-loop join operation, which can support arbitrary join conditions but is also the slowest join implementation.
class	ProjectNode	PlanNode representing the SELECT clause in a SQL query.
class	RenameNode	This plan-node implements the Rename relational algebra operation, for either renaming a table in a query, or assigning a table-name to a derived relation.
class	SelectNode	PlanNode representing the WHERE clause in a SELECT operation.
class	SimpleFilterNode	This select plan node implements a simple filter of a subplan based on a predicate.
class	SortedGroupAggregateNode	Implements grouping and aggregation by using sorting as a method to find groups.
class	SortMergeJoinNode	This class implements the basic sort-merge join algorithm for use in join evaluation.
class	SortNode	This plan node provides a simple in-memory sort operation for use in ORDER BY clauses.
class	TableFunctionScanNode	A select plan-node that produces the output of a specific table-returning function, checking the optional predicate against each tuple.
class	ThetaJoinNode	PlanNode representing the FROM clause in a SELECT operation.
class	TupleBagNode	This plan-node returns tuples from a collection specified on the node before it is prepared.

Fields in edu.caltech.nanodb.plannodes declared as PlanNode

Modifier and Type	Field	Description
protected PlanNode	PlanNode.leftChild	The left child of this plan node.
protected PlanNode	PlanNode.rightChild	If the plan node has two children, this field is set to the right child node.

Methods in edu.caltech.nanodb.plannodes that return PlanNode

Modifier and Type	Method	Description
static PlanNode	PlanUtils.addPredicateToPlan(PlanNode plan, Expression predicate)	This helper function takes a query plan and a selection predicate, and adds the predicate to the plan in a reasonably intelligent way.
protected PlanNode	FileScanNode.clone()	Creates a copy of this simple filter node node and its subtree.
protected PlanNode	NestedLoopJoinNode.clone()	Creates a copy of this plan node and its subtrees.
protected PlanNode	PlanNode.clone()	Creates a copy of this plan node and its subtree.
protected PlanNode	ProjectNode.clone()	Creates a copy of this project node and its subtree.
protected PlanNode	SelectNode.clone()	Creates a copy of this select node and its subtree.
protected PlanNode	SimpleFilterNode.clone()	Creates a copy of this simple filter node node and its subtree.
protected PlanNode	SortMergeJoinNode.clone()	Creates a copy of this plan node and its subtrees.
PlanNode	PlanNode.duplicate()	Returns a deep copy of this plan tree.

Methods in edu.caltech.nanodb.plannodes with parameters of type PlanNode

Modifier and Type	Method	Description
static PlanNode	PlanUtils.addPredicateToPlan(PlanNode plan, Expression predicate)	This helper function takes a query plan and a selection predicate, and adds the predicate to the plan in a reasonably intelligent way.
static java.lang.String	PlanNode.printNodeTreeToString(PlanNode plan)	Generates the same result as printNodeTree(PrintStream), but into a string instead of to an output stream.
static java.lang.String	PlanNode.printNodeTreeToString(PlanNode plan, boolean includeCosts)	Generates the same result as printNodeTree(PrintStream), but into a string instead of to an output stream.

Constructors in edu.caltech.nanodb.plannodes with parameters of type PlanNode

Constructor	Description
GroupAggregateNode(PlanNode subplan, java.util.List<Expression> groupByExprs, java.util.Map<java.lang.String,FunctionCall> aggregates)
HashedGroupAggregateNode(PlanNode subplan, java.util.List<Expression> groupByExprs, java.util.Map<java.lang.String,FunctionCall> aggregates)
NestedLoopJoinNode(PlanNode leftChild, PlanNode rightChild, JoinType joinType, Expression predicate)
PlanNode(PlanNode leftChild)	Constructs a PlanNode with a given operation type, and the specified left child-plan.
PlanNode(PlanNode leftChild, PlanNode rightChild)	Constructs a PlanNode with a given operation type, and the specified left child-plan.
ProjectNode(PlanNode leftChild, java.util.List<SelectValue> projectionSpec)	Constructs a ProjectNode that pulls tuples from a child node.
RenameNode(PlanNode subplan, java.lang.String resultTableName)
SelectNode(PlanNode leftChild, Expression predicate)
SimpleFilterNode(PlanNode child, Expression predicate)
SortedGroupAggregateNode(PlanNode subplan, java.util.List<Expression> groupByExprs, java.util.Map<java.lang.String,FunctionCall> aggregates)
SortMergeJoinNode(PlanNode leftChild, PlanNode rightChild, JoinType joinType, Expression predicate)
SortNode(PlanNode subplan, java.util.List<OrderByExpression> orderByExprs)	Constructs a PlanNode with a given operation type.
ThetaJoinNode(PlanNode leftChild, PlanNode rightChild, JoinType joinType, Expression predicate)	Constructs a ThetaJoinNode that joins the tuples from the left and right subplans, using the specified join type and join predicate.

Uses of PlanNode in edu.caltech.nanodb.queryeval

Fields in edu.caltech.nanodb.queryeval declared as PlanNode

Modifier and Type	Field	Description
PlanNode	CostBasedJoinPlanner.JoinComponent.joinPlan	This is the join plan itself, that joins together all leaves specified in the CostBasedJoinPlanner.JoinComponent.leavesUsed field.

Fields in edu.caltech.nanodb.queryeval with type parameters of type PlanNode

Modifier and Type	Field	Description
java.util.HashSet<PlanNode>	CostBasedJoinPlanner.JoinComponent.leavesUsed	This field specifies the collection of leaf-plans that are joined by the plan in this join-component.

Methods in edu.caltech.nanodb.queryeval that return PlanNode

Modifier and Type	Method	Description
private PlanNode	CostBasedJoinPlanner.makeLeafPlan(FromClause fromClause, java.util.Collection<Expression> conjuncts, java.util.HashSet<Expression> leafConjuncts)	Constructs a plan tree for evaluating the specified from-clause.
PlanNode	CostBasedJoinPlanner.makePlan(SelectClause selClause, java.util.List<SelectClause> enclosingSelects)	Returns the root of a plan tree suitable for executing the specified query.
PlanNode	Planner.makePlan(SelectClause selClause, java.util.List<SelectClause> enclosingSelects)	Returns the root of a plan tree suitable for executing the specified query.
PlanNode	SimplestPlanner.makePlan(SelectClause selClause, java.util.List<SelectClause> enclosingSelects)	Returns the root of a plan tree suitable for executing the specified query.

Methods in edu.caltech.nanodb.queryeval with parameters of type PlanNode

Modifier and Type	Method	Description
static EvalStats	QueryEvaluator.executePlan(PlanNode plan, TupleProcessor processor)	Executes the specified query plan, and feeds the results to the specified tuple processor.

Constructors in edu.caltech.nanodb.queryeval with parameters of type PlanNode

Constructor	Description
JoinComponent(PlanNode leafPlan, java.util.HashSet<Expression> conjunctsUsed)	Constructs a new instance for a leaf node.
JoinComponent(PlanNode joinPlan, java.util.HashSet<PlanNode> leavesUsed, java.util.HashSet<Expression> conjunctsUsed)	Constructs a new instance for a non-leaf node.

Constructor parameters in edu.caltech.nanodb.queryeval with type arguments of type PlanNode

Constructor	Description
JoinComponent(PlanNode joinPlan, java.util.HashSet<PlanNode> leavesUsed, java.util.HashSet<Expression> conjunctsUsed)	Constructs a new instance for a non-leaf node.