pub unsafe fn tuplehash_lookup_hash(
arg_tb: *mut tuplehash_hash,
arg_key: MinimalTuple,
arg_hash: uint32,
) -> *mut TupleHashEntryData
pub unsafe fn tuplehash_lookup_hash(
arg_tb: *mut tuplehash_hash,
arg_key: MinimalTuple,
arg_hash: uint32,
) -> *mut TupleHashEntryData