In a PostgreSQL 8.0.4 environment, does dropping the database and reloading it completely reset the XID information that causes transaction ID wraparound? (I am assuming that it does, but wanted to double-check before doing this.) From what I can tell, I am just about to hit the XID wraparound problem, given the following results: SELECT datname, age(datfrozenxid) FROM pg_database; datname | age -----------+------------ datadb | 2002912692 template1 | 1034177089 template0 | 1034177089 (3 rows) I know that a VACUUM FULL will fix this, but on this database a VACUUM FULL usually takes more than 48 hrs to complete and [more importantly], a VACUUM FULL usually crashes the PostgreSQL engine. (We _very_ frequently crash with a ' could not rename "d:/pgsql/data/pg_xlog/0000000100000504000000D5" to "d:/pgsql/data/pg_xlog/0000000100000504000000E8", continuing to try ' error just with our normal volume of database activity; running any decent-sized VACUUM is almost always guaranteed to crash at some point with this error or with one of the "could not fsync" or "could not unlink" errors.) So ... I'm looking for a viable alternative to a VACUUM FULL to prevent the impending transaction wraparound. (Note that I _have_ been doing vacuums on all of the individual tables in this database every week but I don't think this helps prevent the XID wraparound problem in a PG 8.0.x environment? [By vacuuming the tables one at a time we've managed to get a 30-40% success rate of getting through vacuuming all the tables without the database crashing.]) I do understand that this version of PostgreSQL is very old; however, at the moment I am just looking for an immediate solution to this problem. (The reasons for it still being at this old version are long and at some point need to be the subject of another posting. We are looking at moving it to PG 8.3.x since the "rename" problem appears to finally be fixed; however, we need to wait until 8.3.2 or later because much of the database access is via JDBC.) Thanks in advance for any insights... - Bill