I'm wondering if there's a description anywhere of the significance of number reported in errors; for example I've recently run into this error: ERROR: could not read block 132 of relation 1663/16430/1249: read only 0 of 8192 bytes >From some documentation I've read (http://etutorials.org/SQL/Postgresql/Part+I+General+PostgreSQL+Use/Chapter+4.+Performance/How+PostgreSQL+Organizes+Data/) I know the second is the database's directory, the last is the pg_attribute table (in this example), but I haven't figured out what the first is. Additionally, is that format usually consistent across errors? For example, would the number in this error relate to the same values: ERROR: could not open relation 1663/16430/16868: No such file or directory -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general