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package proto
import "github.com/go-faster/errors"
// ColRaw is Column that performs zero decoding or encoding.
// T, Size are required.
//
// TODO: support strings and T, Size inference.
//
// Useful for copying from one source to another.
type ColRaw struct {
T ColumnType // type of column
Size int // size of single value
Data []byte // raw value of column
Count int // count of rows
}
func (c ColRaw) Type() ColumnType { return c.T }
func (c ColRaw) Rows() int { return c.Count }
func (c ColRaw) EncodeColumn(b *Buffer) { b.Buf = append(b.Buf, c.Data...) }
func (c *ColRaw) DecodeColumn(r *Reader, rows int) error {
c.Count = rows
c.Data = append(c.Data[:0], make([]byte, c.Size*rows)...)
if err := r.ReadFull(c.Data); err != nil {
return errors.Wrap(err, "read full")
}
return nil
}
func (c *ColRaw) Reset() {
c.Count = 0
c.Data = c.Data[:0]
}
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