Hi i tried to restore a dump from version 8.1.8 to 8.1.9 and i had in one table a value "1.7383389519587511e-310" i got the following error message: pg_restore: ERROR: type "double precision" value out of range: underflow CONTEXT: COPY gesamtpunktecache, line 925001, column gc_gesamtsiege: "1.7383389519587511e-310" pg_restore: [archiver (db)] error returned by PQendcopy: ERROR: type "double precision" value out of range: underflow CONTEXT: COPY gesamtpunktecache, line 925001, column gc_gesamtsiege: "1.7383389519587511e-310" i tried to insert a value of "1.7383389519587511e-310" to a 8.18 database but i didn't manage it (with the same error message). But in one of my databases i can select a value like this. very strange. i just wanted to told you just in case it is of any interest and maybe i can help with further informations. kind regards, janning