executor

type Context struct {
	// Every command should use Context as the fmt.Fprint's writer.
	io.Writer

	pegasus.Client

	Meta *session.MetaManager

	// default to nil
	UseTable     pegasus.TableConnector
	UseTableName string
	// default to 0
	UseTablePartitionCount int

	// default to nil
	Compressor util.BytesCompression

	HashKeyEnc, SortKeyEnc, ValueEnc util.Encoder
}

type ScanCommand struct {
	HashKey string

	// optional
	From, To                 *string
	Prefix, Suffix, Contains *string

	// only calculate the count of sortkeys under this hashkey.
	// default to false.
	CountOnly bool
}