Achilleas Mantzios <achill@xxxxxxxxxxxxxxxxxxxxx> wrote: > One (ON DELETE CASCADE) FK constraint which was supposed to be > there was found to be (mysteriously) absent. Do you have old backups to see how long it has been gone? > So we pg_dumped the schema on a known good 8.3.3 identical test > database That's an oxymoron. 8.3.3 has known bugs and security vulnerability which have been fixed in maintenance releases which can be applied without a dump and reload. http://www.postgresql.org/support/versioning The current 8.3 release is 8.3.12. For details of what's been fixed, see this: http://www.postgresql.org/docs/8.3/static/release.html > and compared it against the suspicious schema on the problematic > vessel. The diff (without options) alone produced ~ 7500 lines of > output. Were both databases at the same version number? Was the same version of pg_dump used for both dumps? (Note: you can always dump an older database with a newer version of pg_dump, but not vice versa.) > Both databases were created with the same procedure using dumps > from 7.4.2. The current version of 7.4 is 7.4.30!: http://www.postgresql.org/docs/7.4/static/release.html I'm not clear what you mean, though. Both databases are on 8.3.3? > I must mention that the HW of the problematic vessel died some > time around summer, and i had myself personally onboard, pg_dump > the old DB, and restore it to the new box. Did you get any errors when the dump was loaded? A damaged database might have left orphaned rows which would have prevented creation of the foreign key. Do you still have a dump file from that point? > I am puzzled about the differences in the schema, if any one has > any ideas of why this might be happening, would be great. My first guess is that they were dumped by pg_dump executables from different versions. -Kevin -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin