"Aaron Harsh" <ajh@xxxxxxxxxxx> writes: > We've just recently started seeing sporadic constraint violations on system tables. For example: > duplicate key violates unique constraint "pg_class_oid_index" [for Statement "CREATE TEMPORARY TABLE... OID wraparound would explain that ... > and the occasional > unexpected chunk number 0 (expected 1) for toast value ... but not that. The latter might possibly be due to a corrupt index on a toast table. If you have a reproducible way of causing it, I'd definitely love to see it. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq