Thanks Scott. That is a much clearer way of putting it. That old PostgreSQL runs just fine, in one place, but I have 50 GB of files in another place. PostgreSQL is not reading it. How can I persuade this PostgreSQL, or any PostgeSQL, to read that 50 GB of files. Or any independent tool to read the files. Tom Lane mentioned "vacuum". If only I knew the database name, I could try "psql dbname". But I don't know the database name either. I did run "vacuum" in my new testdb. Yeah. I guess the previous DBA put those files on a different file system, and then forgot about them, probably with good reason. But as I said, the previous DBA is no longer available. Imagine I send just those files to you, and you try to get some text out of them. I do not have the SQL used to create the tables, no table structures. --- Scott Marlowe <smarlowe@xxxxxxxxxxxxxxxxx> wrote: > It sounds like the current postgresql is running in > one directory, and > you're looking in another directory. If you can see > how postgresql was > started, does it have a -D switch that shows the > directory? My guess is > you could chmod 000 the master directory you're > looking at right now and > postgresql could still startup, because it's not > where you think it is.