Philip Warner wrote: > We have an intermittent bug that occurs on a table which is updated several > times per second. The bug occurs every few days/weeks. It is usually > preceeded by a "tuple concurrently updated" messages, but I could not swear > it is always preceeded by it. > > The result of the bug is demonstrated by: > > select id,count(*) from xxx group by id having count(*)>1; > id | count > -------+------- > 24613 | 6 > (1 row)
Please do a SELECT xmin, xmax, cmin, cmax FROM xxx where id = 24613; if you still have that particular manifestation. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend