Interface JoinOrderPlanner

public interface JoinOrderPlanner

Optional SPI for cost-based join-order planning over a flat list of join arguments.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	JoinOrderPlanner.Algorithm
static final class	JoinOrderPlanner.FilterConstraint
static final class	JoinOrderPlanner.JoinOrderPlan
static final class	JoinOrderPlanner.PlanningAttempt
static final class	JoinOrderPlanner.PlanStep

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_DYNAMIC_PROGRAMMING_JOIN_ARG_LIMIT
static final int	FILTER_COST_CHEAP
static final int	FILTER_COST_EXPENSIVE

Method Summary

Modifier and Type	Method	Description
default Optional<JoinOrderPlanner.JoinOrderPlan>	estimateJoinOrder(List<TupleExpr> orderedArgs, Set<String> initiallyBoundVars, JoinOrderPlanner.Algorithm algorithm, List<JoinOrderPlanner.FilterConstraint> deferredFilters)
Optional<JoinOrderPlanner.JoinOrderPlan>	planJoinOrder(List<TupleExpr> args, Set<String> initiallyBoundVars, JoinOrderPlanner.Algorithm algorithm)
default Optional<JoinOrderPlanner.JoinOrderPlan>	planJoinOrder(List<TupleExpr> args, Set<String> initiallyBoundVars, JoinOrderPlanner.Algorithm algorithm, List<JoinOrderPlanner.FilterConstraint> deferredFilters)
default JoinOrderPlanner.PlanningAttempt	planJoinOrderAttempt(List<TupleExpr> args, Set<String> initiallyBoundVars, JoinOrderPlanner.Algorithm algorithm)
default JoinOrderPlanner.PlanningAttempt	planJoinOrderAttempt(List<TupleExpr> args, Set<String> initiallyBoundVars, JoinOrderPlanner.Algorithm algorithm, List<JoinOrderPlanner.FilterConstraint> deferredFilters)

Field Details

DEFAULT_DYNAMIC_PROGRAMMING_JOIN_ARG_LIMIT

static final int DEFAULT_DYNAMIC_PROGRAMMING_JOIN_ARG_LIMIT

See Also:

• Constant Field Values

FILTER_COST_CHEAP

static final int FILTER_COST_CHEAP

See Also:

• Constant Field Values

FILTER_COST_EXPENSIVE

static final int FILTER_COST_EXPENSIVE

See Also:

• Constant Field Values

Method Details

planJoinOrder

Optional<JoinOrderPlanner.JoinOrderPlan> planJoinOrder(List<TupleExpr> args,
 Set<String> initiallyBoundVars,
 JoinOrderPlanner.Algorithm algorithm)

planJoinOrder

default Optional<JoinOrderPlanner.JoinOrderPlan> planJoinOrder(List<TupleExpr> args,
 Set<String> initiallyBoundVars,
 JoinOrderPlanner.Algorithm algorithm,
 List<JoinOrderPlanner.FilterConstraint> deferredFilters)

planJoinOrderAttempt

default JoinOrderPlanner.PlanningAttempt planJoinOrderAttempt(List<TupleExpr> args,
 Set<String> initiallyBoundVars,
 JoinOrderPlanner.Algorithm algorithm)

planJoinOrderAttempt

default JoinOrderPlanner.PlanningAttempt planJoinOrderAttempt(List<TupleExpr> args,
 Set<String> initiallyBoundVars,
 JoinOrderPlanner.Algorithm algorithm,
 List<JoinOrderPlanner.FilterConstraint> deferredFilters)

estimateJoinOrder

default Optional<JoinOrderPlanner.JoinOrderPlan> estimateJoinOrder(List<TupleExpr> orderedArgs,
 Set<String> initiallyBoundVars,
 JoinOrderPlanner.Algorithm algorithm,
 List<JoinOrderPlanner.FilterConstraint> deferredFilters)