v0.2.0
Queries can now pass ReturnSizes
to ask the datastore to return sizes of values. Useful when used in conjunction with KeysOnly
to retrieve sizes without returning the values.
If a datastore does not support returning sizes, it should return -1.
WARNING: If you intend to use this feature, make sure to upgrade your datastore implementations at the same time. Otherwise, they'll silently return 0
for sizes.