dservice

Documentation

Index

• func BuildSingleTableExplainResults(root ExplainNode) []*dmodel.SingleTableExplainResult
• type ExistingIndexRemover
  • func NewExistingIndexRemover(idxGetter IndexGetter, dbName string, its []*dmodel.IndexTarget) *ExistingIndexRemover
  • func (r *ExistingIndexRemover) Remove() ([]*dmodel.IndexTarget, error)
• type ExplainNode
• type IndexEfficiencyExaminer
  • func NewIndexEfficiencyExaminer(ie IndexExaminer) *IndexEfficiencyExaminer
  • func (iee *IndexEfficiencyExaminer) Run(its []*dmodel.IndexTarget) (*dmodel.ExaminationResult, error)
• type IndexExaminer
• type IndexGetter

Functions

func BuildSingleTableExplainResults

func BuildSingleTableExplainResults(root ExplainNode) []*dmodel.SingleTableExplainResult

Types

type ExistingIndexRemover

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

func NewExistingIndexRemover

func NewExistingIndexRemover(idxGetter IndexGetter, dbName string, its []*dmodel.IndexTarget) *ExistingIndexRemover

func (*ExistingIndexRemover) Remove

func (r *ExistingIndexRemover) Remove() ([]*dmodel.IndexTarget, error)

type ExplainNode

type ExplainNode interface {
	TableName() string
	EstimatedTotalTime() float64

	GetChildren() []ExplainNode
}

type IndexEfficiencyExaminer

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

func NewIndexEfficiencyExaminer

func NewIndexEfficiencyExaminer(ie IndexExaminer) *IndexEfficiencyExaminer

func (*IndexEfficiencyExaminer) Run

func (iee *IndexEfficiencyExaminer) Run(its []*dmodel.IndexTarget) (*dmodel.ExaminationResult, error)

type IndexExaminer

type IndexExaminer interface {
	Execute() (int64, error)
	CreateIndex(string, *dmodel.IndexTarget) error
	DropIndex(string, *dmodel.IndexTarget) error
}

type IndexGetter

type IndexGetter interface {
	GetIndexes(database string, tables []string) ([]*dmodel.IndexTarget, error)
}