Fduch the Pravking <fduch(at)antar(dot)bryansk(dot)ru> writes:
> postmaster (PostgreSQL) 7.1.3
> psql input:
> test=> SELECT timestamp 'infinity' - timestamp 'infinity';
> psql output:
> ?column?
> -------------------------------------------------
> -2147483648 days --2147483648:-2147483648:00NaN
> (1 row)
In current sources (7.2RC2, more or less) I get
regression=# SELECT timestamp 'infinity' - timestamp 'infinity';
ERROR: Unable to subtract non-finite timestamps
So this has apparently been dealt with...
regards, tom lane