Method tryDecodeHandle

pkg/util/rowcodec/decoder.go:448–479

(values [][]byte, offset int, col *ColInfo,
	handle kv.Handle, cacheBytes []byte)

}

func (decoder *BytesDecoder) tryDecodeHandle(values [][]byte, offset int, col *ColInfo,
	handle kv.Handle, cacheBytes []byte) bool {
	if handle == nil {
		return false
	}
	if types.NeedRestoredData(col.Ft) {
		return false
	}
	if col.IsPKHandle || col.ID == model.ExtraHandleID {
		handleData := cacheBytes
		if mysql.HasUnsignedFlag(col.Ft.GetFlag()) {
			handleData = append(handleData, UintFlag)
			handleData = codec.EncodeUint(handleData, uint64(handle.IntValue()))
		} else {
			handleData = append(handleData, IntFlag)
			handleData = codec.EncodeInt(handleData, handle.IntValue())
		}
		values[offset] = handleData
		return true
	}
	var handleData []byte
	for i, hid := range decoder.handleColIDs {
		if col.ID == hid {
			handleData = append(handleData, handle.EncodedCol(i)...)
		}
	}
	if len(handleData) > 0 {
		values[offset] = handleData
		return true
	}
	return false
}

// DecodeToBytesNoHandle decodes raw byte slice to row data without handle.
func (decoder *BytesDecoder) DecodeToBytesNoHandle(outputOffset map[int64]int, value []byte) ([][]byte, error) {