plantest

Documentation

Overview

Package plantest contains utilities for testing each query planning phase

Index

• Variables
• func CompareLogicalPlanNodes(p, q plan.Node) error
• func CompareLogicalPlans(p, q *plan.Spec) error
• func ComparePhysicalPlanNodes(p, q plan.Node) error
• func ComparePlans(p, q *plan.Spec, f func(p, q plan.Node) error) error
• func ComparePlansShallow(p, q *plan.Spec) error
• func CreateLogicalMockNode(id string) *plan.LogicalNode
• func CreatePhysicalMockNode(id string) *plan.PhysicalPlanNode
• func CreatePhysicalNode(id plan.NodeID, spec plan.PhysicalProcedureSpec) *plan.PhysicalPlanNode
• func CreatePlanSpec(ps *PlanSpec) *plan.Spec
• func LogicalRuleTestHelper(t *testing.T, tc *RuleTestCase, options ...cmp.Option)
• func PhysicalRuleTestHelper(t *testing.T, tc *RuleTestCase, options ...cmp.Option)
• type CreateCycleRule
  • func (CreateCycleRule) Name() string
  • func (ccr CreateCycleRule) Pattern() plan.Pattern
  • func (ccr CreateCycleRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)
• type FunctionRule
  • func (fr *FunctionRule) Name() string
  • func (fr *FunctionRule) Pattern() plan.Pattern
  • func (fr *FunctionRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)
• type MockProcedureSpec
• type MultiRootRule
  • func (sr *MultiRootRule) Name() string
  • func (sr *MultiRootRule) Pattern() plan.Pattern
  • func (sr *MultiRootRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)
• type PlanSpec
• type RuleTestCase
• type SimpleRule
  • func (sr *SimpleRule) Name() string
  • func (sr *SimpleRule) Pattern() plan.Pattern
  • func (sr *SimpleRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)
• type SmashPlanRule
  • func (SmashPlanRule) Name() string
  • func (spp SmashPlanRule) Pattern() plan.Pattern
  • func (spp SmashPlanRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)

Variables

var CmpOptions = append(
	semantictest.CmpOptions,
	cmp.AllowUnexported(operation.Spec{}),
	cmp.AllowUnexported(universe.JoinOpSpec{}),
	cmpopts.IgnoreUnexported(operation.Spec{}),
	cmpopts.IgnoreUnexported(universe.JoinOpSpec{}),
	cmp.AllowUnexported(kafka.ToKafkaProcedureSpec{}),
	cmpopts.IgnoreUnexported(kafka.ToKafkaProcedureSpec{}),
	valuestest.ScopeTransformer,
)

CmpOptions are the options needed to compare plan.ProcedureSpecs inside plan.Spec.

Functions

func CompareLogicalPlanNodes

func CompareLogicalPlanNodes(p, q plan.Node) error

CompareLogicalPlanNodes is a comparator function for LogicalPlanNodes

func CompareLogicalPlans

func CompareLogicalPlans(p, q *plan.Spec) error

CompareLogicalPlans compares two logical plans.

func ComparePhysicalPlanNodes

func ComparePhysicalPlanNodes(p, q plan.Node) error

ComparePhysicalPlanNodes is a comparator function for PhysicalPlanNodes

func ComparePlans

func ComparePlans(p, q *plan.Spec, f func(p, q plan.Node) error) error

ComparePlans compares two query plans using an arbitrary comparator function f

func ComparePlansShallow

func ComparePlansShallow(p, q *plan.Spec) error

ComparePlansShallow Compares the two specs, but only compares the metadata and the types of each node. Individual fields of procedure specs are not compared.

func CreateLogicalMockNode

func CreateLogicalMockNode(id string) *plan.LogicalNode

func CreatePhysicalMockNode

func CreatePhysicalMockNode(id string) *plan.PhysicalPlanNode

func CreatePhysicalNode

func CreatePhysicalNode(id plan.NodeID, spec plan.PhysicalProcedureSpec) *plan.PhysicalPlanNode

func CreatePlanSpec

func CreatePlanSpec(ps *PlanSpec) *plan.Spec

func LogicalRuleTestHelper

func LogicalRuleTestHelper(t *testing.T, tc *RuleTestCase, options ...cmp.Option)

LogicalRuleTestHelper will run a rule test case.

func PhysicalRuleTestHelper

func PhysicalRuleTestHelper(t *testing.T, tc *RuleTestCase, options ...cmp.Option)

PhysicalRuleTestHelper will run a rule test case.

Types

type CreateCycleRule

type CreateCycleRule struct {
	Node plan.Node
	Kind plan.ProcedureKind
}

CreateCycleRule creates a cycle between the given `Node` and its predecessor. It creates exactly one cycle. After the rule is triggered once, it won't have any effect later. This rule breaks the integrity of the plan. If `Kind` is specified, it takes precedence over `Node`, and the rule will use it to match.

func (CreateCycleRule) Name

func (CreateCycleRule) Name() string

func (CreateCycleRule) Pattern

func (ccr CreateCycleRule) Pattern() plan.Pattern

func (CreateCycleRule) Rewrite

func (ccr CreateCycleRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)

type FunctionRule

type FunctionRule struct {
	RewriteFn func(ctx context.Context, node plan.Node) (plan.Node, bool, error)
}

FunctionRule is a simple rule intended to invoke a Rewrite function.

func (*FunctionRule) Name

func (fr *FunctionRule) Name() string

func (*FunctionRule) Pattern

func (fr *FunctionRule) Pattern() plan.Pattern

func (*FunctionRule) Rewrite

func (fr *FunctionRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)

type MockProcedureSpec

type MockProcedureSpec = spec.MockProcedureSpec

type MultiRootRule

type MultiRootRule struct {
	SeenNodes []plan.NodeID
}

MultiRootRule matches a set of plan nodes at the root and stores the NodeIDs of nodes it has visited in SeenNodes.

func (*MultiRootRule) Name

func (sr *MultiRootRule) Name() string

func (*MultiRootRule) Pattern

func (sr *MultiRootRule) Pattern() plan.Pattern

func (*MultiRootRule) Rewrite

func (sr *MultiRootRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)

type PlanSpec

type PlanSpec = spec.PlanSpec

type RuleTestCase

type RuleTestCase struct {
	Name           string
	Context        context.Context
	Rules          []plan.Rule
	Before         *PlanSpec
	After          *PlanSpec
	NoChange       bool
	SkipValidation bool
	ValidateError  error
}

RuleTestCase allows for concise creation of test cases that exercise rules

type SimpleRule

type SimpleRule struct {
	ReturnNilNode bool
	ReturnChanged bool
	SeenNodes     []plan.NodeID
}

SimpleRule is a simple rule whose pattern matches any plan node and just stores the NodeIDs of nodes it has visited in SeenNodes.

func (*SimpleRule) Name

func (sr *SimpleRule) Name() string

func (*SimpleRule) Pattern

func (sr *SimpleRule) Pattern() plan.Pattern

func (*SimpleRule) Rewrite

func (sr *SimpleRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)

type SmashPlanRule

type SmashPlanRule struct {
	Node     plan.Node
	Intruder plan.Node
	Kind     plan.ProcedureKind
}

SmashPlanRule adds an `Intruder` as predecessor of the given `Node` without marking it as successor of it. It breaks the integrity of the plan. If `Kind` is specified, it takes precedence over `Node`, and the rule will use it to match.

func (SmashPlanRule) Name

func (SmashPlanRule) Name() string

func (SmashPlanRule) Pattern

func (spp SmashPlanRule) Pattern() plan.Pattern

func (SmashPlanRule) Rewrite

func (spp SmashPlanRule) Rewrite(ctx context.Context, node plan.Node) (plan.Node, bool, error)