"Thilo Hille" <thilo@resourcery.de> writes:
> today i had 2 corrupted tables after nearly 2 month without any problems.
Corrupted how, exactly?
> is it mandatory for the tables integrity to run "analyze" periodically?
No.
> pg version is 7.2-1PGDG
You should consider updating to 7.2.2; although none of the bug fixes in
7.2.2 look like they might be causes of table corruption.
regards, tom lane