On Sat, Aug 06, 2005 at 10:00:10PM -0400, Robert Perry wrote: > I have a production environment that is running the code that > caused this problem about once every 30 seconds or so, with two > clients. It normally runs very well, but I was suddenly hit with a > duplicate key violation for a table where the primary key is > generated in part from sequence. > > How might this have happen? Have any values been inserted that weren't obtained from the sequence? What are the results of the following queries? SELECT max(tid) FROM game_pay_cash_coupon_trans; SELECT * FROM game_pay_cash_coupon_trans_seq; (You already showed the second query, but let's see it again run at the same time as the first). -- Michael Fuhr