feat(Trie): Working prefix match with holes #1654
Merged
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This PR adds a way to match a prefix, while ignoring certain portions of the key (aka holes).
This is useful to implement multi-tenancy in Dgraph, where namespace is stored on the byte index 3-11 in the prefix key, and those bytes need to be ignored to subscribe to updates across all the namespaces.
This change is![Reviewable](https://camo.githubusercontent.com/23b05f5fb48215c989e92cc44cf6512512d083132bd3daf689867c8d9d386888/68747470733a2f2f72657669657761626c652e696f2f7265766965775f627574746f6e2e737667)