Tom Lane <[EMAIL PROTECTED]> writes: > Gregory Stark <[EMAIL PROTECTED]> writes: > > Tom Lane <[EMAIL PROTECTED]> writes: > > Would it be possible to make a whole new protocol message for EXPLAIN > > results? > > I'm really unwilling to get into that. For one thing, that would > absolutely positively break *all* use of EXPLAIN from un-fixed clients, > whether you were trying to stop early or not.
Well I was picturing still having the manual EXPLAIN ANALYZE which works as it does now replacing the query results in addition to a lower level protocol request which generates a protocol response with the data. > > The reason I'm suggesting that is because it might make it easier to > > implement > > the SIGINFO handler that sends incremental EXPLAIN results on demand that I > > was describing earlier. > > Doesn't matter, because that's not happening ;-) SIGINFO isn't > portable, and even if it were, a signal handler couldn't possibly > generate EXPLAIN output (remember those catalog accesses). Well the signal gets handled by psql. It would have to be a wire protocol message like Query Cancel that the backend watches for and handles the first time it can. -- greg ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
