decoder

Documentation

Index

• type Column
• type RowDecoder
  • func NewRowDecoder(cols []*table.Column, decodeColMap map[int64]Column) RowDecoder
  • func (rd RowDecoder) DecodeAndEvalRowWithMap(ctx sessionctx.Context, b []byte, decodeLoc, sysLoc *time.Location, ...) (map[int64]types.Datum, error)

Types

type Column

type Column struct {
	Info    *model.ColumnInfo
	GenExpr expression.Expression
}

Column contains the info and generated expr of column.

type RowDecoder

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

RowDecoder decodes a byte slice into datums and eval the generated column value.

func NewRowDecoder

func NewRowDecoder(cols []*table.Column, decodeColMap map[int64]Column) RowDecoder

NewRowDecoder returns a new RowDecoder.

func (RowDecoder) DecodeAndEvalRowWithMap

func (rd RowDecoder) DecodeAndEvalRowWithMap(ctx sessionctx.Context, b []byte, decodeLoc, sysLoc *time.Location, row map[int64]types.Datum) (map[int64]types.Datum, error)

DecodeAndEvalRowWithMap decodes a byte slice into datums and evaluates the generated column value.