sql

Documentation

Index

• type AssistanceContext
• type CreateTablePlan
  • func (c CreateTablePlan) Explain() Explanation
  • func (c CreateTablePlan) Run(ctx ExecutionContext) error
• type ExecutionContext
• type Explanation
• type InsertTablePlan
  • func (i InsertTablePlan) Explain() Explanation
  • func (i *InsertTablePlan) ReceiveRow(row RowValue)
  • func (i InsertTablePlan) Run(ctx ExecutionContext) error
• type PlanStage
• type PlanStep
• type Planner
  • func NewPlanner(txn engine.Transaction) Planner
• type PlanningContext
• type QueryPlan
• type Receiver
• type RowValue
• type SelectRenderer
• type UniqueColumn
  • func NewUniqueColumn(tableId, columnId uint8) UniqueColumn
  • func (u UniqueColumn) ColumnId() uint8
  • func (u UniqueColumn) TableId() uint8
• type ValuesListPlan
  • func (v ValuesListPlan) Explain() Explanation
  • func (v ValuesListPlan) Run(ctx ExecutionContext) error
• type ValuesListRenderer
  • func (v ValuesListRenderer) Explain() Explanation
  • func (v ValuesListRenderer) Run(ctx ExecutionContext) error

Types

type AssistanceContext

type AssistanceContext interface {
	GetTable(tableName string) (base.Table, bool, error)
	GetValues() []RowValue
	StoreValue(rowValue RowValue)
	ClearValues()
}

type CreateTablePlan

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

func (CreateTablePlan) Explain

func (c CreateTablePlan) Explain() Explanation

func (CreateTablePlan) Run

func (c CreateTablePlan) Run(ctx ExecutionContext) error

type ExecutionContext

type ExecutionContext interface {
	engine.Transaction
	AssistanceContext
}

type Explanation

type Explanation struct {
	Action      int
	Name        string
	Description string
	Key         []byte
	Value       []byte
	Cost        int
}

type InsertTablePlan

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

func (InsertTablePlan) Explain

func (i InsertTablePlan) Explain() Explanation

func (*InsertTablePlan) ReceiveRow

func (i *InsertTablePlan) ReceiveRow(row RowValue)

func (InsertTablePlan) Run

func (i InsertTablePlan) Run(ctx ExecutionContext) error

type PlanStage

type PlanStage []PlanStep

type PlanStep

type PlanStep interface {
	Run(ctx ExecutionContext) error
	Explain() Explanation
}

type Planner

type Planner interface {
	Build(node ast.SyntaxTree) (QueryPlan, error)
}

func NewPlanner

func NewPlanner(txn engine.Transaction) Planner

type PlanningContext

type PlanningContext interface {
	AssistanceContext
}

type QueryPlan

type QueryPlan interface {
	Run() error
}

type Receiver

type Receiver interface {
	ReceiveRow(row RowValue)
}

type RowValue

type RowValue map[uint8]reflect.Value

type SelectRenderer

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

type UniqueColumn

type UniqueColumn uint16

func NewUniqueColumn

func NewUniqueColumn(tableId, columnId uint8) UniqueColumn

func (UniqueColumn) ColumnId

func (u UniqueColumn) ColumnId() uint8

func (UniqueColumn) TableId

func (u UniqueColumn) TableId() uint8

type ValuesListPlan

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

func (ValuesListPlan) Explain

func (v ValuesListPlan) Explain() Explanation

func (ValuesListPlan) Run

func (v ValuesListPlan) Run(ctx ExecutionContext) error

type ValuesListRenderer

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

func (ValuesListRenderer) Explain

func (v ValuesListRenderer) Explain() Explanation

func (ValuesListRenderer) Run

func (v ValuesListRenderer) Run(ctx ExecutionContext) error