Add Query-Fastpath

Reference-Implementation for proposed Queryer-Interface (like Execer)

connection.go

@@ -238,6 +238,37 @@ func (mc *mysqlConn) exec(query string) (e error) {
 	return
 }
 
+func (mc *mysqlConn) Query(query string, args []driver.Value) (driver.Rows, error) {
+	if len(args) > 0 {
+		return nil, driver.ErrSkip
+	}
+
+	// Send command
+	e := mc.writeCommandPacket(COM_QUERY, query)
+	if e != nil {
+		return nil, e
+	}
+
+	// Read Result
+	var resLen int
+	resLen, e = mc.readResultSetHeaderPacket()
+	if e != nil {
+		return nil, e
+	}
+
+	rows := mysqlRows{&rowsContent{mc, false, resLen, nil}}
+
+	if resLen > 0 {
+		// Columns
+		rows.content.columns, e = mc.readColumns(resLen)
+		if e != nil {
+			return nil, e
+		}
+	}
+
+	return rows, e
+}
+
 // Gets the value of the given MySQL System Variable
 func (mc *mysqlConn) getSystemVar(name string) (val string, e error) {
 	// Send command