Add db-connect, a SQL over HTTPS server

vendor/github.com/kshvakov/clickhouse/clickhouse_progress.go

@@ -0,0 +1,26 @@
+package clickhouse
+
+type progress struct {
+	rows      uint64
+	bytes     uint64
+	totalRows uint64
+}
+
+func (ch *clickhouse) progress() (*progress, error) {
+	var (
+		p   progress
+		err error
+	)
+	if p.rows, err = ch.decoder.Uvarint(); err != nil {
+		return nil, err
+	}
+	if p.bytes, err = ch.decoder.Uvarint(); err != nil {
+		return nil, err
+	}
+
+	if p.totalRows, err = ch.decoder.Uvarint(); err != nil {
+		return nil, err
+	}
+
+	return &p, nil
+}