Takes the following: - TransactionContext tc - key to be cleared k

and clears the key from the db. Returns nil.

Takes the following: - TransactionContext tc - Range of keys to be cleared rg

and clears the range from the db. Returns nil.

Takes the following: - TransactionContext tc - key to be fetched k (should be byte-array, or convertible to byte-array) - Function parsefn taking the stored byte-array at k and converting it to the appropriate return value v

Optionally, you can also pass a Subspace s, under which the key is stored.

Takes the following: - TransactionContext tc - Range of keys to fetch or a Subspace r-or-s - IF r-or-s is a Subspace, can also accept t, a Tuple within that Subspace - keyfn and valfn, to transform the key/value to the correct format.

and returns a map of key/value pairs.

Note that this function is greedy and forces the evaluation of the entire iterable. Use with care. If you want to get a lazy iterator, use the underlying get-range functions from ftr or fsub namespaces.

Takes the following: - TransactionContext tc - key to be stored k (should be byte-array, or convertible to byte-array) - value to be stored v (should be byte-array, or convertible to byte-array)

and stores v against k in FDB. Returns nil.

Optionally, you can also pass a Subspace s under which the key will be stored.