From: Alvaro Herrera <alvhe...@alvh.no-ip.org>
> In pqTraceOutputString(), you can use the return value from fprintf to
> move the cursor -- no need to count chars.

Yes, precisely, 2 bytes for the double quotes needs to be subtracted as follows:

        len = fprintf(...);
        *cursor += (len - 2);


> I still think that the message-type specific functions should print the
> message type, rather than having the string arrays.

I sort of think so to remove the big arrays.  But to minimize duplicate code, I 
think the code structure will look like:

        fprintf(timestamp, length);
        switch (type)
        {
                case '?':
                        pqTraceOutput?(...);
                break;
                case '?':
                        /* No message content */
                        fprintf("message_type_name");
                break;
        }       

void
pqTraceOutput?(...)
{
        fprintf("message_type_name");
        print message content;  
}

The order of length and message type is reversed.  The .sgml should also be 
changed accordingly.  What do you think?

Iwata-san, 
Why don't you submit v27 patch with the current arrays kept, and then v28 with 
the arrays removed soon after?


From: Kyotaro Horiguchi <horikyota....@gmail.com>
> It would help when the value is "255", which is confusing between -1
> (or 255) in byte or 255 in 2-byte word. Or when the value looks like
> broken. I'd suggest "b"yte for 1 byte, "s"hort for 2 bytes, "l"ong for
> 4 bytes ('l' is confusing with '1', but anyway it is not needed)..

I don't have a strong opinion on this.  (I kind of think I want to see 
unprefixed numbers; readers will look at the protocol reference anyway.)  I'd 
like to leave this up to Iwata-san and Alvaro-san.


        Regards
Takayuki Tsunakawa}

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