Thomas Markus <t.markus@proventis.net> writes:
> a customer got the exception "org.postgresql.util.PSQLException: ERROR:
> value out of range: underflow" without any stacktrace etc.
I'd venture that the cause is some server-side double precision
arithmetic that underflowed. It's not that hard to hit, eg
postgres=# select 1e-200::float8 * 1e-200::float8;
ERROR: value out of range: underflow
regards, tom lane
