"David J. R. Brook" <brookd@udmercy.edu> writes:
> I'm trying to use the 'bit' and 'varbit' datatypes in a table.
What version are you running? IIRC, there are types calling themselves
bit and varbit in 7.0, but they're only stubs; the first real support
for bitstrings is in 7.1.
regards, tom lane