darcy(at)druid(dot)net ("D'Arcy" "J.M." Cain) writes:
> darcy=> select * from x where g = '12345-0000';
> ERROR: fmgr_info: function 0: cache lookup failed
> As you can see, the select worked until I added the index.
This is a bit of a reach, but maybe it would work if you added
commutator links to your operator definitions? You should add 'em
anyway on general principles.
If that *does* fix it, I'd say it's still a bug; index operators
should not have to have commutator links.
Next step would be to burrow in with a debugger and figure out what
function the thing thinks it's trying to call. A backtrace from
the call to elog() would help here.
regards, tom lane