Hi everyone! The current Vector API only supports 32bit maximum indices for Vectors.
I feel that 64bits would be more appropriate especially because the indices are likely to be hash values of other data and 32bit will result in quite a few collisions. Also, for some jobs, notably ItemSimilarityJob, this restriction means that we need a special id to index map where we'll collide anyway. What do you think about adding support for 64bit indices? Is anyone at all interested?
