"Iwata, Aya" <iwata....@jp.fujitsu.com> writes:
> I'm going to propose libpq debug log for analysis of queries on the
> application side.
> I think that it is useful to determine whether the cause is on the
> application side or the server side when a slow query occurs.
Hm, how will you tell that really? And what's the advantage over the
existing server-side query logging capability?
> The provided information is "date and time" at which execution of processing
> is started, "query", "application side processing", which is picked up
> information from PQtrace(), and "connection id", which is for uniquely
> identifying the connection.
PQtrace() is utterly useless for anything except debugging libpq
internals, and it's not tremendously useful even for that. Don't
bother with that part.
Where will you get a "unique connection id" from?
How will you deal with asynchronously-executed queries --- either
the PQgetResult style, or the single-row-at-a-time style?
regards, tom lane
