Re: implementing query timeout

Here is my first draft of a query timeout SET variable. It works for a
simple test:

test=> set query_timeout to '2000';
SET
test=> select * from pg_class, pg_type;
ERROR: Query was cancelled.
test=>

I still need to polish it up and do more testing. Can people comment on
the proper placement of the disable_sig_alarm(true) calls? Also, the
handling of the alarm is tricky because the deadlock timer uses the
alarm as well and the query_timeout. (I have not gotten all the cases
correct yet.)

--
Bruce Momjian | http://candle.pha.pa.us
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