Vivek Khera wrote:

On Feb 20, 2008, at 9:09 AM, Geoffrey wrote:

"tract_order_num_key" unique, btree (order_num)

So, this application has been running along just fine like this for a couple of years. Is it possible that the above index is causing the problem?

slony won't care about this index. all it cares is that you have a primary key defined for the table. your above key does not qualify as a primary key.

Understood.  We do have a primary key on this index:

Indexes:
    "tract_pkey" primary key, btree (recid)
    "tract_order_num_key" unique, btree (order_num)
    "tract_assigned" btree (assigned)
    "tract_code" btree (code)
    "tract_comments" btree (comments)
    "tract_compound_1" btree (code, old_order_num)
    "tract_date_avail" btree (date_avail)
    "tract_dest_state" btree (dest_state)
    "tract_dest_zone" btree (dest_zone)
    "tract_driver" btree (driver)
    "tract_orig_state" btree (orig_state)
    "tract_orig_zone" btree (orig_zone)
    "tract_prebooked" btree (prebooked)
    "tract_tractor_num" btree (tractor_num)
    "tract_trailer_num" btree (trailer_num)

--
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
 - Benjamin Franklin
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