Re: Using defines for protocol characters

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От Nathan Bossart
Тема Re: Using defines for protocol characters
Дата
Msg-id 20230807183849.GA1244255@nathanxps13
обсуждение исходный текст
Ответ на Re: Using defines for protocol characters  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
On Mon, Aug 07, 2023 at 02:24:58PM -0400, Tom Lane wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> IMHO, the correspondence between the names in the patch and the
>> traditional names in the documentation could be stronger. For example,
>> the documentation mentions EmptyQueryResponse and
>> NegotiateProtocolVersion, but in this patch those become
>> PQMSG_RESP_NEGOTIATE_PROTOCOL and PQMSG_RESP_EMPTY_QUERY. I think we
>> could consider directly using the names from the documentation, right
>> down to capitalization, perhaps with a prefix, but I'm also totally
>> fine with this use of uppercase letters and underscores. But why not
>> do a strict translation, like EmptyQueryResponse ->
>> PQMSG_EMPTY_QUERY_RESPONSE, NegotiateProtocolVersion ->
>> PQMSG_NEGOTIATE_PROTOCOL_VERSION? To me at least, the current patch is
>> inventing new and slightly different names for things that already
>> have names...
> 
> +1.  For ease of greppability, maybe even PQMSG_EmptyQueryResponse
> and so on?  Then one grep would find both uses of the constants and
> code/docs references.  Not sure if the prefix should be all-caps or
> not if we go this way.

+1 for Tom's suggestion.  I have no strong opinion about the prefix, but I
do think easing greppability is worthwhile.

As mentioned earlier [0], I think we should also consider putting the
definitions in pqcomm.h.

[0] https://postgr.es/m/20230803185356.GA1144430%40nathanxps13

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com



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