"Nicholas Barr" <[EMAIL PROTECTED]> writes:
> At the moment it seems as if a single 32 bit integer is used for the
> permissions, with the top half being the grantable rights. I assume I
> would need to extend this into two 32 bit integers, or one 64 bit integer?

Two 32-bit please.  We are still trying not to depend on 64-bit
arithmetic for any core functionality.

                        regards, tom lane

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