r.current = <-item.dst
		r.err = item.err
		r.recordsRead = 0
	}
	kvRecord := r.current[r.recordsRead]
	r.recordsRead++

	dstRec, ok := dst.(*Record)
	if !ok {
		dstRec = &Record{}
	}
	dstRec.KVS = kvRecord
	dstRec.SelectFormat = sql.SelectFmtJSON
	return dstRec, nil
}

// Close - closes underlying reader.
func (r *PReader) Close() error {
	if r.close != nil {
		close(r.close)
		r.readerWg.Wait()