queryplan

package

v0.3.1 Latest Latest Go to latest Published: Apr 17, 2023 License: Apache-2.0 Imports: 7 Imported by: 0

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Package queryplan provides helper functions to process PlanNodes (EXPERIMENTAL)

This section is empty.

This section is empty.

func ExtractQueryPlan(b []byte) (*spanner.ResultSetStats, *spanner.StructType, error)

func NodeTitle(node *spanner.PlanNode) string

type QueryPlan struct {
	// contains filtered or unexported fields
}

func New(planNodes []*spanner.PlanNode) *QueryPlan

func (qp *QueryPlan) GetNodeByChildLink(link *spanner.PlanNode_ChildLink) *spanner.PlanNode

GetNodeByChildLink returns PlanNode indicated by `link`. If `link` is nil, return the root node.

func (qp *QueryPlan) GetNodeByIndex(id int32) *spanner.PlanNode

func (qp *QueryPlan) IsPredicate(childLink *spanner.PlanNode_ChildLink) bool

func (qp *QueryPlan) IsVisible(link *spanner.PlanNode_ChildLink) bool

func (qp *QueryPlan) PlanNodes() []*spanner.PlanNode

func (qp *QueryPlan) VisibleChildLinks(node *spanner.PlanNode) []*spanner.PlanNode_ChildLink