MySQL Forums
Forum List  »  Docs

Error in OK packet documentation?
Posted by: Michael Lenaghan
Date: April 20, 2019 01:11PM

The OK packet documentation (https://dev.mysql.com/doc/internals/en/packet-OK_Packet.html) says:

These rules distinguish whether the packet represents OK or EOF:

OK: header = 0 and length of packet > 7

EOF: header = 0xfe and length of packet < 9

In the face of the new CLIENT_DEPRECATE_EOF capability I'm not sure what to make of that; is it talking about new style OK packets that can have a header of either 0 *or* 0xfe, or is it talking about old-style OK packets with a 0 header and old-style EOF packets with a 0xfe header?

I *think* it's talking about old-style packets, because new-style OK packets, which can act as either OK or EOF (and have either a 0 or a 0xfe header) seem to have a minimum length of 8. In fact, they really have a minimum length of 12, because you can't have CLIENT_DEPRECATE_EOF without CLIENT_PROTOCOL_41.

Anyway, very difficult to parse—and perhaps actively misleading now that OK packets can have 0xfe headers.

Options: ReplyQuote


Subject
Views
Written By
Posted
Error in OK packet documentation?
672
April 20, 2019 01:11PM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.